[Python-checkins] cpython (3.3): Move 3.1 and 3.2 NEWS items to HISTORY.
georg.brandl
python-checkins at python.org
Mon Oct 1 18:59:23 CEST 2012
http://hg.python.org/cpython/rev/7a7913a11350
changeset: 79366:7a7913a11350
branch: 3.3
parent: 79363:bb77400af434
user: Georg Brandl <georg at python.org>
date: Mon Oct 01 18:55:32 2012 +0200
summary:
Move 3.1 and 3.2 NEWS items to HISTORY.
files:
Misc/HISTORY | 5397 ++++++++++++++++++++++++++++++++++++++
Misc/NEWS | 5397 --------------------------------------
2 files changed, 5397 insertions(+), 5397 deletions(-)
diff --git a/Misc/HISTORY b/Misc/HISTORY
--- a/Misc/HISTORY
+++ b/Misc/HISTORY
@@ -10,6 +10,5403 @@
======================================================================
+What's New in Python 3.2?
+=========================
+
+*Release date: 20-Feb-2011*
+
+Core and Builtins
+-----------------
+
+- Issue #11249: Fix potential crashes when using the limited API.
+
+Build
+-----
+
+- Issue #11222: Fix non-framework shared library build on Mac OS X.
+
+- Issue #11184: Fix large-file support on AIX.
+
+- Issue #941346: Fix broken shared library build on AIX.
+
+Documentation
+-------------
+
+- Issue #10709: Add updated AIX notes in Misc/README.AIX.
+
+
+What's New in Python 3.2 Release Candidate 3?
+=============================================
+
+*Release date: 13-Feb-2011*
+
+Core and Builtins
+-----------------
+
+- Issue #11134: Add missing fields to typeslots.h.
+
+- Issue #11135: Remove redundant doc field from PyType_Spec.
+
+- Issue #11067: Add PyType_GetFlags, to support PyUnicode_Check in the limited
+ ABI.
+
+- Issue #11118: Fix bogus export of None in python3.dll.
+
+Library
+-------
+
+- Issue #11116: any error during addition of a message to a mailbox now causes a
+ rollback, instead of leaving the mailbox partially modified.
+
+- Issue #11132: Fix passing of "optimize" parameter when recursing in
+ compileall.compile_dir().
+
+- Issue #11110: Fix a potential decref of a NULL in sqlite3.
+
+- Issue #8275: Fix passing of callback arguments with ctypes under Win64. Patch
+ by Stan Mihai.
+
+Build
+-----
+
+- Issue #11079: The /Applications/Python x.x folder created by the Mac OS X
+ installers now includes a link to the installed documentation and no longer
+ includes an Extras directory. The Tools directory is now installed in the
+ framework under share/doc.
+
+- Issue #11121: Fix building with --enable-shared.
+
+Tests
+-----
+
+- Issue #10971: test_zipimport_support is once again compatible with the refleak
+ hunter feature of test.regrtest.
+
+
+What's New in Python 3.2 Release Candidate 2?
+=============================================
+
+*Release date: 30-Jan-2011*
+
+Core and Builtins
+-----------------
+
+- Issue #10451: memoryview objects could allow to mutate a readable buffer.
+ Initial patch by Ross Lagerwall.
+
+Library
+-------
+
+- Issue #9124: mailbox now accepts binary input and reads and writes mailbox
+ files in binary mode, using the email package's binary support to parse
+ arbitrary email messages. StringIO and text file input is deprecated,
+ and string input fails early if non-ASCII characters are used, where
+ previously it would fail when the email was processed in a later step.
+
+- Issue #10845: Mitigate the incompatibility between the multiprocessing
+ module on Windows and the use of package, zipfile or directory execution
+ by special casing main modules that actually *are* called __main__.py.
+
+- Issue #11045: Protect logging call against None argument.
+
+- Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save
+ commands.
+
+- Issue #11053: Fix IDLE "Syntax Error" windows to behave as in 2.x,
+ preventing a confusing hung appearance on OS X with the windows
+ obscured.
+
+- Issue #10940: Workaround an IDLE hang on Mac OS X 10.6 when using the
+ menu accelerators for Open Module, Go to Line, and New Indent Width.
+ The accelerators still work but no longer appear in the menu items.
+
+- Issue #10989: Fix a crash on SSLContext.load_verify_locations(None, True).
+
+- Issue #11020: Command-line pyclbr was broken because of missing 2-to-3
+ conversion.
+
+- Issue #11019: Fixed BytesGenerator so that it correctly handles a Message
+ with a None body.
+
+- Issue #11014: Make 'filter' argument in tarfile.Tarfile.add() into a
+ keyword-only argument. The preceding positional argument was deprecated,
+ so it made no sense to add filter as a positional argument.
+
+- Issue #11004: Repaired edge case in deque.count().
+
+- Issue #10974: IDLE no longer crashes if its recent files list includes files
+ with non-ASCII characters in their path names.
+
+- Have hashlib.algorithms_available and hashlib.algorithms_guaranteed both
+ return sets instead of one returning a tuple and the other a frozenset.
+
+- Issue #10987: Fix the recursion limit handling in the _pickle module.
+
+- Issue #10983: Fix several bugs making tunnel requests in http.client.
+
+- Issue #10955: zipimport uses ASCII encoding instead of cp437 to decode
+ filenames, at bootstrap, if the codec registry is not ready yet. It is still
+ possible to have non-ASCII filenames using the Unicode flag (UTF-8 encoding)
+ for all file entries in the ZIP file.
+
+- Issue #10949: Improved robustness of rotating file handlers.
+
+- Issue #10955: Fix a potential crash when trying to mmap() a file past its
+ length. Initial patch by Ross Lagerwall.
+
+- Issue #10898: Allow compiling the posix module when the C library defines
+ a symbol named FSTAT.
+
+- Issue #10980: the HTTP server now encodes headers with iso-8859-1 (latin1)
+ encoding. This is the preferred encoding of PEP 3333 and the base encoding
+ of HTTP 1.1.
+
+- To match the behaviour of HTTP server, the HTTP client library now also
+ encodes headers with iso-8859-1 (latin1) encoding. It was already doing
+ that for incoming headers which makes this behaviour now consistent in
+ both incoming and outgoing direction.
+
+- Issue #9509: argparse now properly handles IOErrors raised by
+ argparse.FileType.
+
+- Issue #10961: The new pydoc server now better handles exceptions raised
+ during request handling.
+
+- Issue #10680: Fix mutually exclusive arguments for argument groups in
+ argparse.
+
+Build
+-----
+
+- Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with
+ the system-provided Python.
+
+
+What's New in Python 3.2 Release Candidate 1
+============================================
+
+*Release date: 16-Jan-2011*
+
+Core and Builtins
+-----------------
+
+- Issue #10889: range indexing and slicing now works correctly on ranges with
+ a length that exceeds sys.maxsize.
+
+- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
+ class.
+
+- Issue #8020: Avoid a crash where the small objects allocator would read
+ non-Python managed memory while it is being modified by another thread. Patch
+ by Matt Bandy.
+
+- Issue #10841: On Windows, set the binary mode on stdin, stdout, stderr and all
+ io.FileIO objects (to not translate newlines, \r\n <=> \n). The Python parser
+ translates newlines (\r\n => \n).
+
+- Remove buffer API from stable ABI for now, see #10181.
+
+- Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
+ doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int
+ (length bigger than 2^31-1 bytes).
+
+- Issue #9015, #9611: FileIO.readinto(), FileIO.write(), os.write() and
+ stdprinter.write() clamp the length to INT_MAX on Windows.
+
+- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
+ can now handle dates after 2038.
+
+- Issue #10780: PyErr_SetFromWindowsErrWithFilename() and
+ PyErr_SetExcFromWindowsErrWithFilename() decode the filename from the
+ filesystem encoding instead of UTF-8.
+
+- Issue #10779: PyErr_WarnExplicit() decodes the filename from the filesystem
+ encoding instead of UTF-8.
+
+- Add sys.flags attribute for the new -q command-line option.
+
+- Issue #11506: Trying to assign to a bytes literal should result in a
+ SyntaxError.
+
+Library
+-------
+
+- Issue #10916: mmap should not segfault when a file is mapped using 0 as length
+ and a non-zero offset, and an attempt to read past the end of file is made
+ (IndexError is raised instead). Patch by Ross Lagerwall.
+
+- Issue #10154, #10090: change the normalization of UTF-8 to "UTF-8" instead
+ of "UTF8" in the locale module as the latter is not supported MacOSX and OpenBSD.
+
+- Issue #10907: Warn OS X 10.6 IDLE users to use ActiveState Tcl/Tk 8.5, rather
+ than the currently problematic Apple-supplied one, when running with the
+ 64-/32-bit installer variant.
+
+- Issue #4953: cgi.FieldStorage and cgi.parse() parse the request as bytes, not
+ as unicode, and accept binary files. Add encoding and errors attributes to
+ cgi.FieldStorage. Patch written by Pierre Quentel (with many inputs by Glenn
+ Linderman).
+
+- Add encoding and errors arguments to urllib.parse_qs() and urllib.parse_qsl().
+
+- Issue #10899: No function type annotations in the standard library. Removed
+ function type annotations from _pyio.py.
+
+- Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'.
+
+- Issue #10872: The repr() of TextIOWrapper objects now includes the mode
+ if available.
+
+- Issue #10869: Fixed bug where ast.increment_lineno modified the root node
+ twice.
+
+- Issue #5871: email.header.Header.encode now raises an error if any
+ continuation line in the formatted value has no leading white space and looks
+ like a header. Since Generator uses Header to format all headers, this check
+ is made for all headers in any serialized message at serialization time. This
+ provides protection against header injection attacks.
+
+- Issue #10859: Make ``contextlib.GeneratorContextManager`` officially
+ private by renaming it to ``_GeneratorContextManager``.
+
+- Issue #10042: Fixed the total_ordering decorator to handle cross-type
+ comparisons that could lead to infinite recursion.
+
+- Issue #10686: the email package now :rfc:`2047`\ -encodes headers with
+ non-ASCII bytes (parsed by a BytesParser) when doing conversion to 7bit-clean
+ presentation, instead of replacing them with ?s.
+
+- email.header.Header was incorrectly encoding folding whitespace when
+ rfc2047-encoding header values with embedded newlines, leaving them without
+ folding whitespace. It now uses the continuation_ws, as it does for
+ continuation lines that it creates itself.
+
+- Issue #1777412, #10827: Changed the rules for 2-digit years. The
+ time.asctime(), time.ctime() and time.strftime() functions will now format
+ any year when ``time.accept2dyear`` is False and will accept years >= 1000
+ otherwise. ``time.mktime`` and ``time.strftime`` now accept full range
+ supported by the OS. With Visual Studio or on Solaris, the year is limited to
+ the range [1; 9999]. Conversion of 2-digit years to 4-digit is deprecated.
+
+- Issue #7858: Raise an error properly when os.utime() fails under Windows
+ on an existing file.
+
+- Issue #3839: wsgiref should not override a Content-Length header set by
+ the application. Initial patch by Clovis Fabricio.
+
+- Issue #10492: bdb.Bdb.run() only traces the execution of the code, not the
+ compilation (if the input is a string).
+
+- Issue #7995: When calling accept() on a socket with a timeout, the returned
+ socket is now always blocking, regardless of the operating system.
+
+- Issue #10756: atexit normalizes the exception before displaying it. Patch by
+ Andreas Stührk.
+
+- Issue #10790: email.header.Header.append's charset logic now works correctly
+ for charsets whose output codec is different from its input codec.
+
+- Issue #10819: SocketIO.name property returns -1 when its closed, instead of
+ raising a ValueError, to fix repr().
+
+- Issue #8650: zlib.compress() and zlib.decompress() raise an OverflowError if
+ the input buffer length doesn't fit into an unsigned int (length bigger than
+ 2^32-1 bytes).
+
+- Issue #6643: Reinitialize locks held within the threading module after fork to
+ avoid a potential rare deadlock or crash on some platforms.
+
+- Issue #10806, issue #9905: Fix subprocess pipes when some of the standard file
+ descriptors (0, 1, 2) are closed in the parent process. Initial patch by Ross
+ Lagerwall.
+
+- `unittest.TestCase` can be instantiated without a method name; for simpler
+ exploration from the interactive interpreter.
+
+- Issue #10798: Reject supporting concurrent.futures if the system has too
+ few POSIX semaphores.
+
+- Issue #10807: Remove base64, bz2, hex, quopri, rot13, uu and zlib codecs from
+ the codec aliases. They are still accessible via codecs.lookup().
+
+- Issue #10801: In zipfile, support different encodings for the header and the
+ filenames.
+
+- Issue #6285: IDLE no longer crashes on missing help file; patch by Scott
+ David Daniels.
+
+- Fix collections.OrderedDict.setdefault() so that it works in subclasses that
+ define __missing__().
+
+- Issue #10786: unittest.TextTestRunner default stream no longer bound at import
+ time. `sys.stderr` now looked up at instantiation time. Fix contributed by
+ Mark Roddy.
+
+- Issue #10753: Characters ';', '=' and ',' in the PATH_INFO environment variable
+ won't be quoted when the URI is constructed by the wsgiref.util's request_uri
+ method. According to RFC 3986, these characters can be a part of params in
+ PATH component of URI and need not be quoted.
+
+- Issue #10738: Fix webbrowser.Opera.raise_opts.
+
+- Issue #9824: SimpleCookie now encodes , and ; in values to cater to how
+ browsers actually parse cookies.
+
+- Issue #9333: os.symlink now available regardless of user privileges. The
+ function now raises OSError on Windows >=6.0 when the user is unable to create
+ symbolic links. XP and 2003 still raise NotImplementedError.
+
+- Issue #10783: struct.pack() no longer implicitly encodes unicode to UTF-8.
+
+- Issue #10730: Add SVG mime types to mimetypes module.
+
+- Issue #10768: Make the Tkinter ScrolledText widget work again.
+
+- Issue #10777: Fix "dictionary changed size during iteration" bug in
+ ElementTree register_namespace().
+
+- Issue #10626: test_logging now preserves logger disabled states.
+
+- Issue #10774: test_logging now removes temp files created during tests.
+
+- Issue #5258/#10642: if site.py encounters a .pth file that generates an error,
+ it now prints the filename, line number, and traceback to stderr and skips
+ the rest of that individual file, instead of stopping processing entirely.
+
+- Issue #10763: subprocess.communicate() closes stdout and stderr if both are
+ pipes (bug specific to Windows).
+
+- Issue #1693546: fix email.message RFC 2231 parameter encoding to be in better
+ compliance (no "s around encoded values).
+
+- Improved the diff message in the unittest module's assertCountEqual().
+
+- Issue #1155362: email.utils.parsedate_tz now handles a missing space before
+ the '-' of a timezone field as well as before a '+'.
+
+- Issue #4871: The zipfile module now gives a more useful error message if
+ an attempt is made to use a string to specify the archive password.
+
+- Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only.
+
+- Deprecated assertDictContainsSubset() in the unittest module.
+
+C-API
+-----
+
+- PyObject_CallMethod now passes along any underlying AttributeError from
+ PyObject_GetAttr, instead of replacing it with something less informative
+
+- Issue #10913: Deprecate misleading functions PyEval_AcquireLock() and
+ PyEval_ReleaseLock(). The thread-state aware APIs should be used instead.
+
+- Issue #10333: Remove ancient GC API, which has been deprecated since Python
+ 2.2.
+
+Build
+-----
+
+- Issue #10843: Update third-party library versions used in OS X 32-bit
+ installer builds: bzip2 1.0.6, readline 6.1.2, SQLite 3.7.4 (with FTS3/FTS4
+ and RTREE enabled), and ncursesw 5.5 (wide-char support enabled).
+
+- Issue #10820: Fix OS X framework installs to support version-specific
+ scripts (#10679).
+
+- Issue #7716: Under Solaris, don't assume existence of /usr/xpg4/bin/grep in
+ the configure script but use $GREP instead. Patch by Fabian Groffen.
+
+- Issue #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD
+ and DragonFly BSD. Patch by Nicolas Joly.
+
+- Issue #10679: The "idle", "pydoc" and "2to3" scripts are now installed with
+ a version-specific suffix on "make altinstall".
+
+- Issue #10655: Fix the build on PowerPC on Linux with GCC when building with
+ timestamp profiling (--with-tsc): the preprocessor test for the PowerPC
+ support now looks for "__powerpc__" as well as "__ppc__": the latter seems to
+ only be present on OS X; the former is the correct one for Linux with GCC.
+
+- Issue #1099: Fix the build on MacOSX when building a framework with pydebug
+ using GCC 4.0.
+
+Tools/Demos
+-----------
+
+- Issue #10843: Install the Tools directory on OS X in the applications Extras
+ (/Applications/Python 3.n/Extras/) where the Demo directory had previous been
+ installed.
+
+- Issue #7962: The Demo directory is gone. Most of the old and unmaintained
+ demos have been removed, others integrated in documentation or a new
+ Tools/demo subdirectory.
+
+- Issue #10502: Addition of the unittestgui tool. Originally by Steve Purcell.
+ Updated for test discovery by Mark Roddy and Python 3 compatibility by Brian
+ Curtin.
+
+Tests
+-----
+
+- Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing.
+
+- Fix test_startfile to wait for child process to terminate before finishing.
+
+- Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch
+ by Ross Lagerwall.
+
+- Make the --coverage flag work for test.regrtest.
+
+- Issue #1677694: Refactor and improve test_timeout. Original patch by
+ Björn Lindqvist.
+
+- Issue #5485: Add tests for the UseForeignDTD method of expat parser objects.
+ Patch by Jean-Paul Calderone and Sandro Tosi.
+
+- Issue #6293: Have regrtest.py echo back sys.flags. This is done by default in
+ whole runs and enabled selectively using ``--header`` when running an explicit
+ list of tests. Original patch by Collin Winter.
+
+
+What's New in Python 3.2 Beta 2?
+================================
+
+*Release date: 19-Dec-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #8844: Regular and recursive lock acquisitions can now be interrupted
+ by signals on platforms using pthreads. Patch by Reid Kleckner.
+
+- Issue #4236: PyModule_Create2 now checks the import machinery directly
+ rather than the Py_IsInitialized flag, avoiding a Fatal Python
+ error in certain circumstances when an import is done in __del__.
+
+- Issue #5587: add a repr to dict_proxy objects. Patch by David Stanek and
+ Daniel Urban.
+
+Library
+-------
+
+- Issue #3243: Support iterable bodies in httplib. Patch Contributions by
+ Xuanji Li and Chris AtLee.
+
+- Issue #10611: SystemExit exception will no longer kill a unittest run.
+
+- Issue #9857: It is now possible to skip a test in a setUp, tearDown or clean
+ up function.
+
+- Issue #10573: use actual/expected consistently in unittest methods.
+ The order of the args of assertCountEqual is also changed.
+
+- Issue #9286: email.utils.parseaddr no longer concatenates blank-separated
+ words in the local part of email addresses, thereby preserving the input.
+
+- Issue #6791: Limit header line length (to 65535 bytes) in http.client
+ and http.server, to avoid denial of services from the other party.
+
+- Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle.
+
+- Issue #9907: Fix tab handling on OSX when using editline by calling
+ rl_initialize first, then setting our custom defaults, then reading .editrc.
+
+- Issue #4188: Avoid creating dummy thread objects when logging operations
+ from the threading module (with the internal verbose flag activated).
+
+- Issue #10711: Remove HTTP 0.9 support from http.client. The ``strict``
+ parameter to HTTPConnection and friends is deprecated.
+
+- Issue #9721: Fix the behavior of urljoin when the relative url starts with a
+ ';' character. Patch by Wes Chow.
+
+- Issue #10714: Limit length of incoming request in http.server to 65536 bytes
+ for security reasons. Initial patch by Ross Lagerwall.
+
+- Issue #9558: Fix distutils.command.build_ext with VS 8.0.
+
+- Issue #10667: Fast path for collections.Counter().
+
+- Issue #10695: passing the port as a string value to telnetlib no longer
+ causes debug mode to fail.
+
+- Issue #1078919: add_header now automatically RFC2231 encodes parameters
+ that contain non-ascii values.
+
+- Issue #10188 (partial resolution): tempfile.TemporaryDirectory emits
+ a warning on sys.stderr rather than throwing a misleading exception
+ if cleanup fails due to nulling out of modules during shutdown.
+ Also avoids an AttributeError when mkdtemp call fails and issues
+ a ResourceWarning on implicit cleanup via __del__.
+
+- Issue #10107: Warn about unsaved files in IDLE on OSX.
+
+- Issue #7213: subprocess.Popen's default for close_fds has been changed.
+ It is now True in most cases other than on Windows when input, output or
+ error handles are provided.
+
+- Issue #6559: subprocess.Popen has a new pass_fds parameter (actually
+ added in 3.2beta1) to allow specifying a specific list of file descriptors
+ to keep open in the child process.
+
+- Issue #1731717: Fixed the problem where subprocess.wait() could cause an
+ OSError exception when The OS had been told to ignore SIGCLD in our process
+ or otherwise not wait for exiting child processes.
+
+Tests
+-----
+
+- Issue #775964: test_grp now skips YP/NIS entries instead of failing when
+ encountering them.
+
+Tools/Demos
+-----------
+
+- Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and
+ Cocoa AquaTk.
+
+- Issue #10710: ``Misc/setuid-prog.c`` is removed from the source tree.
+
+- Issue #10706: Remove outdated script runtests.sh. Either ``make test``
+ or ``python -m test`` should be used instead.
+
+Build
+-----
+
+- The Windows build now uses Tcl/Tk 8.5.9 and sqlite3 3.7.4.
+
+- Issue #9234: argparse supports alias names for subparsers.
+
+
+What's New in Python 3.2 Beta 1?
+================================
+
+*Release date: 05-Dec-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #10630: Return dict views from the dict proxy keys()/values()/items()
+ methods.
+
+- Issue #10596: Fix float.__mod__ to have the same behaviour as float.__divmod__
+ with respect to signed zeros. -4.0 % 4.0 should be 0.0, not -0.0.
+
+- Issue #1772833: Add the -q command-line option to suppress copyright and
+ version output in interactive mode.
+
+- Provide an *optimize* parameter in the built-in compile() function.
+
+- Fixed several corner case issues on Windows in os.stat/os.lstat related to
+ reparse points.
+
+- PEP 384 (Defining a Stable ABI) is implemented.
+
+- Issue #2690: Range objects support negative indices and slicing.
+
+- Issue #9915: Speed up sorting with a key.
+
+- Issue #8685: Speed up set difference ``a - b`` when source set ``a`` is much
+ larger than operand ``b``. Patch by Andrew Bennetts.
+
+- Issue #10518: Bring back the callable() builtin.
+
+- Issue #7094: Added alternate formatting (specified by '#') to ``__format__``
+ method of float, complex, and Decimal. This allows more precise control over
+ when decimal points are displayed.
+
+- Issue #10474: range.count() should return integers.
+
+- Issue #1574217: isinstance now catches only AttributeError, rather than
+ masking all errors.
+
+Library
+-------
+
+- logging: added "handler of last resort". See http://bit.ly/last-resort-handler
+
+- test.support: Added TestHandler and Matcher classes for better support of
+ assertions about logging.
+
+- Issue #4391: Use proper plural forms in argparse.
+
+- Issue #10601: sys.displayhook uses 'backslashreplace' error handler on
+ UnicodeEncodeError.
+
+- Add the "display" and "undisplay" pdb commands.
+
+- Issue #7245: Add a SIGINT handler in pdb that allows to break a program again
+ after a "continue" command.
+
+- Add the "interact" pdb command.
+
+- Issue #7905: Actually respect the keyencoding parameter to shelve.Shelf.
+
+- Issue #1569291: Speed up array.repeat().
+
+- Provide an interface to set the optimization level of compilation in
+ py_compile, compileall and zipfile.PyZipFile.
+
+- Issue #7904: Changes to urllib.parse.urlsplit to handle schemes as defined by
+ RFC3986. Anything before :// is considered a scheme and is followed by an
+ authority (or netloc) and by '/' led path, which is optional.
+
+- Issue #6045: dbm.gnu databases now support get() and setdefault() methods.
+
+- Issue #10620: `python -m unittest` can accept file paths instead of module
+ names for running specific tests.
+
+- Issue #9424: Deprecate the `unittest.TestCase` methods `assertEquals`,
+ `assertNotEquals`, `assertAlmostEquals`, `assertNotAlmostEquals` and `assert_`
+ and replace them with the correct methods in the Python test suite.
+
+- Issue #10272: The ssl module now raises socket.timeout instead of a generic
+ SSLError on socket timeouts.
+
+- Issue #10528: Allow translators to reorder placeholders in localizable
+ messages from argparse.
+
+- Issue #10497: Fix incorrect use of gettext in argparse.
+
+- Issue #10478: Reentrant calls inside buffered IO objects (for example by
+ way of a signal handler) now raise a RuntimeError instead of freezing the
+ current process.
+
+- logging: Added getLogRecordFactory/setLogRecordFactory with docs and tests.
+
+- Issue #10549: Fix pydoc traceback when text-documenting certain classes.
+
+- Issue #2001: New HTML server with enhanced Web page features. Patch by Ron
+ Adam.
+
+- Issue #10360: In WeakSet, do not raise TypeErrors when testing for membership
+ of non-weakrefable objects.
+
+- Issue #940286: pydoc.Helper.help() ignores input/output init parameters.
+
+- Issue #1745035: Add a command size and data size limit to smtpd.py, to prevent
+ DoS attacks. Patch by Savio Sena.
+
+- Issue #4925: Add filename to error message when executable can't be found in
+ subprocess.
+
+- Issue #10391: Don't dereference invalid memory in error messages in the ast
+ module.
+
+- Issue #10027: st_nlink was not being set on Windows calls to os.stat or
+ os.lstat. Patch by Hirokazu Yamamoto.
+
+- Issue #9333: Expose os.symlink only when the SeCreateSymbolicLinkPrivilege is
+ held by the user's account, i.e., when the function can actually be used.
+
+- Issue #8879: Add os.link support for Windows.
+
+- Issue #7911: ``unittest.TestCase.longMessage`` defaults to True for improved
+ failure messages by default. Patch by Mark Roddy.
+
+- Issue #1486713: HTMLParser now has an optional tolerant mode where it tries to
+ guess at the correct parsing of invalid html.
+
+- Issue #10554: Add context manager support to subprocess.Popen objects.
+
+- Issue #8989: email.utils.make_msgid now has a domain parameter that can
+ override the domain name used in the generated msgid.
+
+- Issue #9299: Add exist_ok parameter to os.makedirs to suppress the 'File
+ exists' exception when a target directory already exists with the specified
+ mode. Patch by Ray Allen.
+
+- Issue #9573: os.fork() now works correctly when triggered as a side effect of
+ a module import.
+
+- Issue #10464: netrc now correctly handles lines with embedded '#' characters.
+
+- Added itertools.accumulate().
+
+- Issue #4113: Added custom ``__repr__`` method to ``functools.partial``.
+ Original patch by Daniel Urban.
+
+- Issue #10273: Rename `assertRegexpMatches` and `assertRaisesRegexp` to
+ `assertRegex` and `assertRaisesRegex`.
+
+- Issue #10535: Enable silenced warnings in unittest by default.
+
+- Issue #9873: The URL parsing functions in urllib.parse now accept ASCII byte
+ sequences as input in addition to character strings.
+
+- Issue #10586: The statistics API for the new functools.lru_cache has been
+ changed to a single cache_info() method returning a named tuple.
+
+- Issue #10323: itertools.islice() now consumes the minimum number of inputs
+ before stopping. Formerly, the final state of the underlying iterator was
+ undefined.
+
+- Issue #10565: The collections.Iterator ABC now checks for both __iter__ and
+ __next__.
+
+- Issue #10242: Fixed implementation of unittest.ItemsEqual and gave it a new
+ more informative name, unittest.CountEqual.
+
+- Issue #10561: In pdb, clear the breakpoints by the breakpoint number.
+
+- Issue #2986: difflib.SequenceMatcher gets a new parameter, autojunk, which can
+ be set to False to turn off the previously undocumented 'popularity'
+ heuristic. Patch by Terry Reedy and Eli Bendersky.
+
+- Issue #10534: in difflib, expose bjunk and bpopular sets; deprecate
+ undocumented and now redundant isbjunk and isbpopular methods.
+
+- Issue #9846: zipfile is now correctly closing underlying file objects.
+
+- Issue #10459: Update CJK character names to Unicode 6.0.
+
+- Issue #4493: urllib.request adds '/' in front of path components which does not
+ start with '/. Common behavior exhibited by browsers and other clients.
+
+- Issue #6378: idle.bat now runs with the appropriate Python version rather than
+ the system default. Patch by Sridhar Ratnakumar.
+
+- Issue #10470: 'python -m unittest' will now run test discovery by default,
+ when no extra arguments have been provided.
+
+- Issue #3709: BaseHTTPRequestHandler will buffer the headers and write to
+ output stream only when end_headers is invoked. This is a speedup and an
+ internal optimization. Patch by Andrew Shaaf.
+
+- Issue #10220: Added inspect.getgeneratorstate. Initial patch by Rodolpho
+ Eckhardt.
+
+- Issue #10453: compileall now uses argparse instead of getopt, and thus
+ provides clean output when called with '-h'.
+
+- Issue #8078: Add constants for higher baud rates in the termios module. Patch
+ by Rodolpho Eckhardt.
+
+- Issue #10407: Fix two NameErrors in distutils.
+
+- Issue #10371: Deprecated undocumented functions in the trace module.
+
+- Issue #10467: Fix BytesIO.readinto() after seeking into a position after the
+ end of the file.
+
+- configparser: 100% test coverage.
+
+- Issue #10499: configparser supports pluggable interpolation handlers. The
+ default classic interpolation handler is called BasicInterpolation. Another
+ interpolation handler added (ExtendedInterpolation) which supports the syntax
+ used by zc.buildout (e.g. interpolation between sections).
+
+- configparser: the SafeConfigParser class has been renamed to ConfigParser.
+ The legacy ConfigParser class has been removed but its interpolation mechanism
+ is still available as LegacyInterpolation.
+
+- configparser: Usage of RawConfigParser is now discouraged for new projects
+ in favor of ConfigParser(interpolation=None).
+
+- Issue #1682942: configparser supports alternative option/value delimiters.
+
+- Issue #5412: configparser supports mapping protocol access.
+
+- Issue #9411: configparser supports specifying encoding for read operations.
+
+- Issue #9421: configparser's getint(), getfloat() and getboolean() methods
+ accept vars and default arguments just like get() does.
+
+- Issue #9452: configparser supports reading from strings and dictionaries
+ (thanks to the mapping protocol API, the latter can be used to copy data
+ between parsers).
+
+- configparser: accepted INI file structure is now customizable, including
+ comment prefixes, name of the DEFAULT section, empty lines in multiline
+ values, and indentation.
+
+- Issue #10326: unittest.TestCase instances can be pickled.
+
+- Issue #9926: Wrapped TestSuite subclass does not get __call__ executed.
+
+- Issue #9920: Skip tests for cmath.atan and cmath.atanh applied to complex
+ zeros on systems where the log1p function fails to respect the sign of zero.
+ This fixes a test failure on AIX.
+
+- Issue #9732: Addition of getattr_static to the inspect module.
+
+- Issue #10446: Module documentation generated by pydoc now links to a
+ version-specific online reference manual.
+
+- Make the 'No module named' exception message from importlib consistent.
+
+- Issue #10443: Add the SSLContext.set_default_verify_paths() method.
+
+- Issue #10440: Support RUSAGE_THREAD as a constant in the resource module.
+ Patch by Robert Collins.
+
+- Issue #10429: IMAP.starttls() stored the capabilities as bytes objects, rather
+ than strings.
+
+C-API
+-----
+
+- Issue #10557: Added a new API function, PyUnicode_TransformDecimalToASCII(),
+ which transforms non-ASCII decimal digits in a Unicode string to their ASCII
+ equivalents.
+
+- Issue #9518: Extend the PyModuleDef_HEAD_INIT macro to explicitly
+ zero-initialize all fields, fixing compiler warnings seen when building
+ extension modules with gcc with "-Wmissing-field-initializers" (implied by
+ "-W").
+
+- Issue #10255: Fix reference leak in Py_InitializeEx(). Patch by Neil
+ Schemenauer.
+
+- structseq.h is now included in Python.h.
+
+- Loosen PyArg_ValidateKeywordArguments to allow dict subclasses.
+
+Tests
+-----
+
+- regrtest.py once again ensures the test directory is removed from sys.path
+ when it is invoked directly as the __main__ module.
+
+- `python -m test` can be used to run the test suite as well as `python -m
+ test.regrtest`.
+
+- Do not fail test_socket when the IP address of the local hostname cannot be
+ looked up.
+
+- Issue #8886: Use context managers throughout test_zipfile. Patch by Eric
+ Carstensen.
+
+Build
+-----
+
+- Issue #10325: Fix two issues in the fallback definitions for PY_ULLONG_MAX and
+ PY_LLONG_MAX that made them unsuitable for use in preprocessor conditionals.
+
+Documentation
+-------------
+
+- Issue #10299: List the built-in functions in a table in functions.rst.
+
+
+What's New in Python 3.2 Alpha 4?
+=================================
+
+*Release date: 13-Nov-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #10372: Import the warnings module only after the IO library is
+ initialized, so as to avoid bootstrap issues with the '-W' option.
+
+- Issue #10293: Remove obsolete field in the PyMemoryView structure, unused
+ undocumented value PyBUF_SHADOW, and strangely-looking code in
+ PyMemoryView_GetContiguous.
+
+- Issue #6081: Add str.format_map(), similar to ``str.format(**mapping)``.
+
+- If FileIO.__init__ fails, close the file descriptor.
+
+- Issue #10221: dict.pop(k) now has a key error message that includes the
+ missing key (same message d[k] returns for missing keys).
+
+- Issue #5437: A preallocated MemoryError instance should not keep traceback
+ data (including local variables caught in the stack trace) alive infinitely.
+
+- Issue #10186: Fix the SyntaxError caret when the offset is equal to the length
+ of the offending line.
+
+- Issue #10089: Add support for arbitrary -X options on the command line. They
+ can be retrieved through a new attribute ``sys._xoptions``.
+
+- Issue #4388: On Mac OS X, decode command line arguments from UTF-8, instead of
+ the locale encoding. If the LANG (and LC_ALL and LC_CTYPE) environment
+ variable is not set, the locale encoding is ISO-8859-1, whereas most programs
+ (including Python) expect UTF-8. Python already uses UTF-8 for the filesystem
+ encoding and to encode command line arguments on this OS.
+
+- Issue #9713, #10114: Parser functions (e.g. PyParser_ASTFromFile) expect
+ filenames encoded to the filesystem encoding with the surrogateescape error
+ handler (to support undecodable bytes), instead of UTF-8 in strict mode.
+
+- Issue #9997: Don't let the name "top" have special significance in scope
+ resolution.
+
+- Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding its value as
+ the default 512 when compiling on AIX.
+
+- Use locale encoding instead of UTF-8 to encode and decode filenames if
+ Py_FileSystemDefaultEncoding is not set.
+
+- Issue #10095: fp_setreadl() doesn't reopen the file, instead reuse the file
+ descriptor.
+
+- Issue #9418: Moved private string methods ``_formatter_parser`` and
+ ``_formatter_field_name_split`` into a new ``_string`` module.
+
+- Issue #9992: Remove PYTHONFSENCODING environment variable.
+
+Library
+-------
+
+- Issue #12943: python -m tokenize support has been added to tokenize.
+
+- Issue #10465: fix broken delegating of attributes by gzip._PaddedFile.
+
+- Issue #10356: Decimal.__hash__(-1) should return -2.
+
+- Issue #1553375: logging: Added stack_info kwarg to display stack information.
+
+- Issue #5111: IPv6 Host in the Header is wrapped inside [ ]. Patch by Chandru.
+
+- Fix Fraction.__hash__ so that Fraction.__hash__(-1) is -2. (See also issue
+ #10356.)
+
+- Issue #4471: Add the IMAP.starttls() method to enable encryption on standard
+ IMAP4 connections. Original patch by Lorenzo M. Catucci.
+
+- Issue #1466065: Add 'validate' option to base64.b64decode to raise an error if
+ there are non-base64 alphabet characters in the input.
+
+- Issue #10386: Add __all__ to token module; this simplifies importing in
+ tokenize module and prevents leaking of private names through ``import *``.
+
+- Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by Lorenzo
+ M. Catucci.
+
+- Fix IMAP.login() to work properly.
+
+- Issue #9244: multiprocessing pool worker processes could terminate
+ unexpectedly if the return value of a task could not be pickled. Only the
+ ``repr`` of such errors are now sent back, wrapped in an
+ ``MaybeEncodingError`` exception.
+
+- Issue #9244: The ``apply_async()`` and ``map_async()`` methods of
+ ``multiprocessing.Pool`` now accepts a ``error_callback`` argument. This can
+ be a callback with the signature ``callback(exc)``, which will be called if
+ the target raises an exception.
+
+- Issue #10022: The dictionary returned by the ``getpeercert()`` method of SSL
+ sockets now has additional items such as ``issuer`` and ``notBefore``.
+
+- ``usenetrc`` is now false by default for NNTP objects.
+
+- Issue #1926: Add support for NNTP over SSL on port 563, as well as STARTTLS.
+ Patch by Andrew Vant.
+
+- Issue #10335: Add tokenize.open(), detect the file encoding using
+ tokenize.detect_encoding() and open it in read only mode.
+
+- Issue #10321: Add support for binary data to smtplib.SMTP.sendmail, and a new
+ method send_message to send an email.message.Message object.
+
+- Issue #6011: sysconfig and distutils.sysconfig use the surrogateescape error
+ handler to parse the Makefile file. Avoid a UnicodeDecodeError if the source
+ code directory name contains a non-ASCII character and the locale encoding is
+ ASCII.
+
+- Issue #10329: The trace module writes reports using the input Python script
+ encoding, instead of the locale encoding. Patch written by Alexander
+ Belopolsky.
+
+- Issue #10126: Fix distutils' test_build when Python was built with
+ --enable-shared.
+
+- Issue #9281: Prevent race condition with mkdir in distutils. Patch by
+ Arfrever.
+
+- Issue #10229: Fix caching error in gettext.
+
+- Issue #10252: Close file objects in a timely manner in distutils code and
+ tests. Patch by Brian Brazil, completed by Éric Araujo.
+
+- Issue #10180: Pickling file objects is now explicitly forbidden, since
+ unpickling them produced nonsensical results.
+
+- Issue #10311: The signal module now restores errno before returning from its
+ low-level signal handler. Patch by Hallvard B Furuseth.
+
+- Issue #10282: Add a ``nntp_implementation`` attribute to NNTP objects.
+
+- Issue #10283: Add a ``group_pattern`` argument to NNTP.list().
+
+- Issue #10155: Add IISCGIHandler to wsgiref.handlers to support IIS CGI
+ environment better, and to correct unicode environment values for WSGI 1.0.1.
+
+- Issue #10281: nntplib now returns None for absent fields in the OVER/XOVER
+ response, instead of raising an exception.
+
+- wsgiref now implements and validates PEP 3333, rather than an experimental
+ extension of PEP 333. (Note: earlier versions of Python 3.x may have
+ incorrectly validated some non-compliant applications as WSGI compliant; if
+ your app validates with Python <3.2b1+, but not on this version, it is likely
+ the case that your app was not compliant.)
+
+- Issue #10280: NNTP.nntp_version should reflect the highest version advertised
+ by the server.
+
+- Issue #10184: Touch directories only once when extracting a tarfile.
+
+- Issue #10199: New package, ``turtledemo`` now contains selected demo scripts
+ that were formerly found under Demo/turtle.
+
+- Issue #10265: Close file objects explicitly in sunau. Patch by Brian Brazil.
+
+- Issue #10266: uu.decode didn't close in_file explicitly when it was given as a
+ filename. Patch by Brian Brazil.
+
+- Issue #10110: Queue objects didn't recognize full queues when the maxsize
+ parameter had been reduced.
+
+- Issue #10160: Speed up operator.attrgetter. Patch by Christos Georgiou.
+
+- logging: Added style option to basicConfig() to allow %, {} or $-formatting.
+
+- Issue #5729: json.dumps() now supports using a string such as '\t' for
+ pretty-printing multilevel objects.
+
+- Issue #10253: FileIO leaks a file descriptor when trying to open a file for
+ append that isn't seekable. Patch by Brian Brazil.
+
+- Support context manager protocol for file-like objects returned by mailbox
+ ``get_file()`` methods.
+
+- Issue #10246: uu.encode didn't close file objects explicitly when filenames
+ were given to it. Patch by Brian Brazil.
+
+- Issue #10198: fix duplicate header written to wave files when writeframes() is
+ called without data.
+
+- Close file objects in modulefinder in a timely manner.
+
+- Close a io.TextIOWrapper object in email.parser in a timely manner.
+
+- Close a file object in distutils.sysconfig in a timely manner.
+
+- Close a file object in pkgutil in a timely manner.
+
+- Issue #10233: Close file objects in a timely manner in the tarfile module and
+ its test suite.
+
+- Issue #10093: ResourceWarnings are now issued when files and sockets are
+ deallocated without explicit closing. These warnings are silenced by default,
+ except in pydebug mode.
+
+- tarfile.py: Add support for all missing variants of the GNU sparse extensions
+ and create files with holes when extracting sparse members.
+
+- Issue #10218: Return timeout status from ``Condition.wait`` in threading.
+
+- Issue #7351: Add ``zipfile.BadZipFile`` spelling of the exception name and
+ deprecate the old name ``zipfile.BadZipfile``.
+
+- Issue #5027: The standard ``xml`` namespace is now understood by
+ xml.sax.saxutils.XMLGenerator as being bound to
+ http://www.w3.org/XML/1998/namespace. Patch by Troy J. Farrell.
+
+- Issue #5975: Add csv.unix_dialect class.
+
+- Issue #7761: telnetlib.interact failures on Windows fixed.
+
+- logging: Added style option to Formatter to allow %, {} or $-formatting.
+
+- Issue #5178: Added tempfile.TemporaryDirectory class that can be used as a
+ context manager.
+
+- Issue #1349106: Generator (and BytesGenerator) flatten method and Header
+ encode method now support a 'linesep' argument.
+
+- Issue #5639: Add a *server_hostname* argument to ``SSLContext.wrap_socket`` in
+ order to support the TLS SNI extension. ``HTTPSConnection`` and ``urlopen()``
+ also use this argument, so that HTTPS virtual hosts are now supported.
+
+- Issue #10166: Avoid recursion in pstats Stats.add() for many stats items.
+
+- Issue #10163: Skip unreadable registry keys during mimetypes initialization.
+
+- logging: Made StreamHandler terminator configurable.
+
+- logging: Allowed filters to be just callables.
+
+- logging: Added tests for _logRecordClass changes.
+
+- Issue #10092: Properly reset locale in calendar.Locale*Calendar classes.
+
+- logging: Added _logRecordClass, getLogRecordClass, setLogRecordClass to
+ increase flexibility of LogRecord creation.
+
+- Issue #5117: Case normalization was needed on ntpath.relpath(). Also fixed
+ root directory issue on posixpath.relpath(). (Ported working fixes from
+ ntpath.)
+
+- Issue #1343: xml.sax.saxutils.XMLGenerator now has an option
+ short_empty_elements to direct it to use self-closing tags when appropriate.
+
+- Issue #9807 (part 1): Expose the ABI flags in sys.abiflags. Add --abiflags
+ switch to python-config for command line access.
+
+- Issue #6098: Don't claim DOM level 3 conformance in minidom.
+
+- Issue #5762: Fix AttributeError raised by ``xml.dom.minidom`` when an empty
+ XML namespace attribute is encountered.
+
+- Issue #2830: Add the ``html.escape()`` function, which quotes all problematic
+ characters by default. Deprecate ``cgi.escape()``.
+
+- Issue #9409: Fix the regex to match all kind of filenames, for interactive
+ debugging in doctests.
+
+- Issue #9183: ``datetime.timezone(datetime.timedelta(0))`` will now return the
+ same instance as ``datetime.timezone.utc``.
+
+- Issue #7523: Add SOCK_CLOEXEC and SOCK_NONBLOCK to the socket module, where
+ supported by the system. Patch by Nikita Vetoshkin.
+
+- Issue #10063: file:// scheme will stop accessing remote hosts via ftp
+ protocol. file:// urls had fallback to access remote hosts via ftp. This was
+ not correct, change is made to raise a URLError when a remote host is tried to
+ access via file:// scheme.
+
+- Issue #1710703: Write structures for an empty ZIP archive when a ZipFile is
+ created in modes 'a' or 'w' and then closed without adding any files. Raise
+ BadZipfile (rather than IOError) when opening small non-ZIP files.
+
+- Issue #10041: The signature of optional arguments in socket.makefile() didn't
+ match that of io.open(), and they also didn't get forwarded properly to
+ TextIOWrapper in text mode. Patch by Kai Zhu.
+
+- Issue #9003: http.client.HTTPSConnection, urllib.request.HTTPSHandler and
+ urllib.request.urlopen now take optional arguments to allow for server
+ certificate checking, as recommended in public uses of HTTPS.
+
+- Issue #6612: Fix site and sysconfig to catch os.getcwd() error, eg. if the
+ current directory was deleted. Patch written by W. Trevor King.
+
+- Issue #3873: Speed up unpickling from file objects that have a peek() method.
+
+- Issue #10075: Add a session_stats() method to SSLContext objects.
+
+- Issue #9948: Fixed problem of losing filename case information.
+
+Extension Modules
+-----------------
+
+- Issue #5109: array.array constructor will now use fast code when
+ initial data is provided in an array object with correct type.
+
+- Issue #6317: Now winsound.PlaySound only accepts unicode.
+
+- Issue #6317: Now winsound.PlaySound can accept non ascii filename.
+
+- Issue #9377: Use Unicode API for gethostname on Windows.
+
+- Issue #10143: Update "os.pathconf" values.
+
+- Issue #6518: Support context manager protcol for ossaudiodev types.
+
+- Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
+
+- Issue #9054: Fix a crash occurring when using the pyexpat module with expat
+ version 2.0.1.
+
+- Issue #5355: Provide mappings from Expat error numbers to string descriptions
+ and backwards, in order to actually make it possible to analyze error codes
+ provided by ExpatError.
+
+- The Unicode database was updated to 6.0.0.
+
+C-API
+-----
+
+- Issue #10288: The deprecated family of "char"-handling macros
+ (ISLOWER()/ISUPPER()/etc) have now been removed: use Py_ISLOWER() etc instead.
+
+- Issue #9778: Hash values are now always the size of pointers. A new Py_hash_t
+ type has been introduced.
+
+Tools/Demos
+-----------
+
+- Issue #10117: Tools/scripts/reindent.py now accepts source files that use
+ encoding other than ASCII or UTF-8. Source encoding is preserved when
+ reindented code is written to a file.
+
+- Issue #7287: Demo/imputil/knee.py was removed.
+
+Tests
+-----
+
+- Issue #3699: Fix test_bigaddrspace and extend it to test bytestrings as well
+ as unicode strings. Initial patch by Sandro Tosi.
+
+- Issue #10294: Remove dead code form test_unicode_file.
+
+- Issue #10123: Don't use non-ascii filenames in test_doctest tests. Add a new
+ test specific to unicode (non-ascii name and filename).
+
+Build
+-----
+
+- Issue #10268: Add a --enable-loadable-sqlite-extensions option to configure.
+
+- Issue #8852: Allow the socket module to build on OpenSolaris.
+
+- Drop -OPT:Olimit compiler option.
+
+- Issue #10094: Use versioned .so files on GNU/kfreeBSD and the GNU Hurd.
+
+- Accept Oracle Berkeley DB 5.0 and 5.1 as backend for the dbm extension.
+
+- Issue #7473: avoid link errors when building a framework with a different set
+ of architectures than the one that is currently installed.
+
+
+What's New in Python 3.2 Alpha 3?
+=================================
+
+*Release date: 09-Oct-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #10068: Global objects which have reference cycles with their module's
+ dict are now cleared again. This causes issue #7140 to appear again.
+
+- Issue #9738: Document PyErr_SetString() and PyErr_SetFromErrnoWithFilename()
+ encodings.
+
+- ast.literal_eval() can now handle negative numbers. It is also a little more
+ liberal in what it accepts without compromising the safety of the evaluation.
+ For example, 3j+4 and 3+4+5 are both accepted.
+
+- Issue #10006: type.__abstractmethods__ now raises an AttributeError. As a
+ result metaclasses can now be ABCs (see #9533).
+
+- Issue #8670: ctypes.c_wchar supports non-BMP characters with 32 bits wchar_t.
+
+- Issue #8670: PyUnicode_AsWideChar() and PyUnicode_AsWideCharString() replace
+ UTF-16 surrogate pairs by single non-BMP characters for 16 bits Py_UNICODE and
+ 32 bits wchar_t (eg. Linux in narrow build).
+
+- Issue #10003: Allow handling of SIGBREAK on Windows. Fixes a regression
+ introduced by issue #9324.
+
+- Issue #9979: Create function PyUnicode_AsWideCharString().
+
+- Issue #7397: Mention that importlib.import_module() is probably what someone
+ really wants to be using in __import__'s docstring.
+
+- Issue #8521: Allow CreateKeyEx, OpenKeyEx, and DeleteKeyEx functions of winreg
+ to use named arguments.
+
+- Issue #9930: Remove bogus subtype check that was causing (e.g.)
+ float.__rdiv__(2.0, 3) to return NotImplemented instead of the expected 1.5.
+
+- Issue #9808: Implement os.getlogin for Windows. Patch by Jon Anglin.
+
+- Issue #9901: Destroying the GIL in Py_Finalize() can fail if some other
+ threads are still running. Instead, reinitialize the GIL on a second call to
+ Py_Initialize().
+
+- All SyntaxErrors now have a column offset and therefore a caret when the error
+ is printed.
+
+- Issue #9252: PyImport_Import no longer uses a fromlist hack to return the
+ module that was imported, but instead gets the module from sys.modules.
+
+- Issue #9213: The range type_items now provides index() and count() methods, to
+ conform to the Sequence ABC. Patch by Daniel Urban and Daniel Stutzbach.
+
+- Issue #7994: Issue a PendingDeprecationWarning if object.__format__ is called
+ with a non-empty format string. This is an effort to future-proof user
+ code. If a derived class does not currently implement __format__ but later
+ adds its own __format__, it would most likely break user code that had
+ supplied a format string. This will be changed to a DeprecationWaring in
+ Python 3.3 and it will be an error in Python 3.4.
+
+- Issue #9828: Destroy the GIL in Py_Finalize(), so that it gets properly
+ re-created on a subsequent call to Py_Initialize(). The problem (a crash)
+ wouldn't appear in 3.1 or 2.7 where the GIL's structure is more trivial.
+
+- Issue #9210: Configure option --with-wctype-functions was removed. Using the
+ functions from the libc caused the methods .upper() and lower() to become
+ locale aware and created subtly wrong results.
+
+- Issue #9738: PyUnicode_FromFormat() and PyErr_Format() raise an error on a
+ non-ASCII byte in the format string.
+
+- Issue #4617: Previously it was illegal to delete a name from the local
+ namespace if it occurs as a free variable in a nested block. This limitation
+ of the compiler has been lifted, and a new opcode introduced (DELETE_DEREF).
+
+- Issue #9804: ascii() now always represents unicode surrogate pairs as a single
+ ``\UXXXXXXXX``, regardless of whether the character is printable or not.
+ Also, the "backslashreplace" error handler now joins surrogate pairs into a
+ single character on UCS-2 builds.
+
+- Issue #9757: memoryview objects get a release() method to release the
+ underlying buffer (previously this was only done when deallocating the
+ memoryview), and gain support for the context management protocol.
+
+- Issue #9797: pystate.c wrongly assumed that zero couldn't be a valid
+ thread-local storage key.
+
+Library
+-------
+
+- Issue #2236: distutils' mkpath ignored the mode parameter.
+
+- Fix typo in one sdist option (medata-check).
+
+- Issue #9199: Fix incorrect use of distutils.cmd.Command.announce.
+
+- Issue #1718574: Fix options that were supposed to accept arguments but did
+ not in build_clib.
+
+- Issue #9437: Fix building C extensions with non-default LDFLAGS.
+
+- Issue #4661: email can now parse bytes input and generate either converted
+ 7bit output or bytes output. Email version bumped to 5.1.0.
+
+- Issue #1589: Add ssl.match_hostname(), to help implement server identity
+ verification for higher-level protocols.
+
+- Issue #9759: GzipFile now raises ValueError when an operation is attempted
+ after the file is closed. Patch by Jeffrey Finkelstein.
+
+- Issue #9042: Fix interaction of custom translation classes and caching in
+ gettext.
+
+- Issue #6706: asyncore.dispatcher now provides a handle_accepted() method
+ returning a (sock, addr) pair which is called when a connection has been
+ established with a new remote endpoint. This is supposed to be used as a
+ replacement for old handle_accept() and avoids the user to call accept()
+ directly.
+
+- Issue #9065: tarfile no longer uses "root" as the default for the uname and
+ gname field.
+
+- Issue #8980: Fixed a failure in distutils.command check that was shadowed by
+ an environment that does not have docutils. Patch by Arfrever.
+
+- Issue #1050268: parseaddr now correctly quotes double quote and backslash
+ characters that appear inside quoted strings in email addresses.
+
+- Issue #10004: quoprimime no longer generates a traceback when confronted with
+ invalid characters after '=' in a Q-encoded word.
+
+- Issue #1491: BaseHTTPServer nows send a ``100 Continue`` response before
+ sending a 200 OK for the Expect: 100-continue request header.
+
+- Issue #9360: Cleanup and improvements to the nntplib module. The API now
+ conforms to the philosophy of bytes and unicode separation in Python 3. A
+ test suite has also been added.
+
+- Issue #9962: GzipFile now has the peek() method.
+
+- Issue #9090: When a socket with a timeout fails with EWOULDBLOCK or EAGAIN,
+ retry the select() loop instead of bailing out. This is because select() can
+ incorrectly report a socket as ready for reading (for example, if it received
+ some data with an invalid checksum).
+
+- Issue #3612: Added new types to ctypes.wintypes. (CHAR and pointers)
+
+- Issue #9950: Fix socket.sendall() crash or misbehaviour when a signal is
+ received. Now sendall() properly calls signal handlers if necessary, and
+ retries sending if these returned successfully, including on sockets with a
+ timeout.
+
+- Issue #9947: logging: Fixed locking bug in stopListening.
+
+- Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler.
+
+- Issue #9936: Fixed executable lines' search in the trace module.
+
+- Issue #9790: Rework imports necessary for samefile and sameopenfile
+ in ntpath.
+
+- Issue #9928: Properly initialize the types exported by the bz2 module.
+
+- Issue #1675951: Allow GzipFile to work with unseekable file objects. Patch by
+ Florian Festi.
+
+- Logging: Added QueueListener class to facilitate logging usage for
+ performance-critical threads.
+
+- Issue #9916: Add some missing errno symbols.
+
+- Issue #9877: Expose sysconfig.get_makefile_filename()
+
+- logging: Added hasHandlers() method to Logger and LoggerAdapter.
+
+- Issue #9908: Fix os.stat() on bytes paths under Windows 7.
+
+- Issue #2643: msync() is not called anymore when deallocating an open mmap
+ object, only munmap().
+
+- logging: Changed LoggerAdapter implementation internally, to make it easier to
+ subclass in a useful way.
+
+- logging: hasHandlers method was added to Logger, and isEnabledFor,
+ getEffectiveLevel, hasHandlers and setLevel were added to LoggerAdapter.
+ LoggerAdapter was introduced into the unit tests for logging.
+
+- Issue #1686: Fix string.Template when overriding the pattern attribute.
+
+- Issue #9854: SocketIO objects now observe the RawIOBase interface in
+ non-blocking mode: they return None when an operation would block (instead of
+ raising an exception).
+
+- Issue #1730136: Fix the comparison between a tk.font.Font and an object of
+ another kind.
+
+- Issue #9441: logging has better coverage for rotating file handlers.
+
+- Issue #9865: collections.OrderedDict now has a __sizeof__ method.
+
+- Issue #9854: The default read() implementation in io.RawIOBase now handles
+ non-blocking readinto() returning None correctly.
+
+- Issue #1552: socket.socketpair() now returns regular socket.socket objects
+ supporting the whole socket API (rather than the "raw" _socket.socket
+ objects).
+
+- Issue #9853: Fix the signature of SSLSocket.recvfrom() and SSLSocket.sendto()
+ to match the corresponding socket methods.
+
+- Issue #9840: Added a decorator to reprlib for wrapping __repr__ methods to make
+ them handle recursive calls within the same thread.
+
+- logging: Enhanced HTTPHandler with secure and credentials initializers.
+
+- Issue #767645: Set os.path.supports_unicode_filenames to True on Mac OS X.
+
+- Issue #9837: The read() method of ZipExtFile objects (as returned by
+ ZipFile.open()) could return more bytes than requested.
+
+- Issue #9826: OrderedDict.__repr__ can now handle self-referential values:
+ d['x'] = d.
+
+- Issue #9825: Using __del__ in the definition of collections.OrderedDict made
+ it possible for the user to create self-referencing ordered dictionaries which
+ become permanently uncollectable GC garbage. Reinstated the Python 3.1
+ approach of using weakref proxies so that reference cycles never get created
+ in the first place.
+
+- Issue #9579, #9580: Fix os.confstr() for value longer than 255 bytes and
+ encode the value with filesystem encoding and surrogateescape (instead of
+ utf-8 in strict mode) . Patch written by David Watson.
+
+- Issue #9632: Remove sys.setfilesystemencoding() function: use PYTHONFSENCODING
+ environment variable to set the filesystem encoding at Python startup.
+ sys.setfilesystemencoding() creates inconsistencies because it is unable to
+ reencode all filenames in all objects.
+
+- Issue #9410: Various optimizations to the pickle module, leading to speedups
+ up to 4x (depending on the benchmark). Mostly ported from Unladen Swallow;
+ initial patch by Alexandre Vassalotti.
+
+- The pprint module now supports printing OrderedDicts in their given order
+ (formerly, it would sort the keys).
+
+- Logging: Added QueueHandler class to facilitate logging usage with
+ multiprocessing.
+
+- Issue #9707: Rewritten reference implementation of threading.local which is
+ friendlier towards reference cycles. This change is not normally visible
+ since an optimized C implementation (_thread._local) is used instead.
+
+- Issue #6394: os.getppid() is now supported on Windows. Note that it will
+ still return the id of the parent process after it has exited. This process
+ id may even have been reused by another unrelated process.
+
+- Issue #9792: In case of connection failure, socket.create_connection() would
+ swallow the exception and raise a new one, making it impossible to fetch the
+ original errno, or to filter timeout errors. Now the original error is
+ re-raised.
+
+- Issue #9758: When fcntl.ioctl() was called with mutable_flag set to True, and
+ the passed buffer was exactly 1024 bytes long, the buffer wouldn't be updated
+ back after the system call. Original patch by Brian Brazil.
+
+- Updates to the random module:
+
+ * Document which parts of the module are guaranteed to stay the same across
+ versions and which parts are subject to change.
+
+ * Update the seed() method to use all of the bits in a string instead of just
+ the hash value. This makes better use of the seed value and assures the
+ seeding is platform independent. Issue #7889.
+
+ * Improved the random()-->integer algorithm used in choice(), shuffle(),
+ sample(), randrange(), and randint(). Formerly, it used int(n*random())
+ which has a slight bias whenever n is not a power of two. Issue #9025.
+
+ * Improved documentation of arguments to randrange(). Issue #9379.
+
+- collections.OrderedDict now supports a new method for repositioning keys to
+ either end.
+
+- Issue #9754: Similarly to assertRaises and assertRaisesRegexp, unittest test
+ cases now also have assertWarns and assertWarnsRegexp methods to check that a
+ given warning type was triggered by the code under test.
+
+- Issue #5506: BytesIO objects now have a getbuffer() method exporting a view of
+ their contents without duplicating them. The view is both readable and
+ writable.
+
+- Issue #7566: Implement os.path.sameopenfile for Windows.
+
+- Issue #9293: I/O streams now raise ``io.UnsupportedOperation`` when an
+ unsupported operation is attempted (for example, writing to a file open only
+ for reading).
+
+- hashlib has two new constant attributes: algorithms_guaranteed and
+ algorithms_avaiable that respectively list the names of hash algorithms
+ guaranteed to exist in all Python implementations and the names of hash
+ algorithms available in the current process.
+
+- A new package ``concurrent.futures`` as defined by PEP 3148.
+
+C-API
+-----
+
+- Add PyErr_SyntaxLocationEx, which supports passing a column offset.
+
+- Issue #9834: Don't segfault in PySequence_GetSlice, PySequence_SetSlice, or
+ PySequence_DelSlice when the object doesn't have any mapping operations
+ defined.
+
+Tools/Demos
+-----------
+
+- Issue #9188: The gdb extension now handles correctly narrow (UCS2) as well as
+ wide (UCS4) unicode builds for both the host interpreter (embedded inside gdb)
+ and the interpreter under test.
+
+Tests
+-----
+
+- Issue #9308: Added tests for importing encoded modules that do not
+ depend on specific stdlib modules being encoded in a certain way.
+
+- Issue #1051: Add a script (Lib/test/make_ssl_certs.py) to generate the custom
+ certificate and private key files used by SSL-related certs.
+
+- Issue #9978: Wait until subprocess completes initialization. (Win32KillTests
+ in test_os)
+
+- Issue #7110: regrtest now sends test failure reports and single-failure
+ tracebacks to stderr rather than stdout.
+
+- Issue #9628: fix runtests.sh -x option so more than one test can be excluded.
+
+- Issue #9899: Fix test_tkinter.test_font on various platforms. Patch by Ned
+ Deily.
+
+- Issue #9894: Do not hardcode ENOENT in test_subprocess.
+
+- Issue #9315: Added tests for the trace module. Patch by Eli Bendersky.
+
+- Issue #9323: Make test.regrtest.__file__ absolute, this was not always the
+ case when running profile or trace, for example.
+
+- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
+
+Build
+-----
+
+- Issue #10062: Allow building on platforms which do not have sem_timedwait.
+
+- Issue #10054: Some platforms provide uintptr_t in inttypes.h. Patch by Akira
+ Kitada.
+
+- Issue #10055: Make json C89-compliant in UCS4 mode.
+
+- Issue #9552: Avoid unnecessary rebuild of OpenSSL. (Windows)
+
+- Issue #1633863: Don't ignore $CC under AIX.
+
+- Issue #9810: Compile bzip2 source files in Python's project file directly. It
+ used to be built with bzip2's makefile.
+
+- Issue #9848: Stopping trying to build _weakref in setup.py as it is a built-in
+ module.
+
+- Issue #9806: python-config now has an ``--extension-suffix`` option that
+ outputs the suffix for dynamic libraries including the ABI version name
+ defined by PEP 3149.
+
+- Issue #941346: Improve the build process under AIX and allow Python to be
+ built as a shared library. Patch by Sébastien Sablé.
+
+- Issue #4026: Make the fcntl extension build under AIX. Patch by Sébastien
+ Sablé.
+
+- Issue #9701: The MacOSX installer can patch the shell profile to ensure that
+ the "bin" directory inside the framework is on the shell's search path. This
+ feature now also supports the ZSH shell.
+
+
+What's New in Python 3.2 Alpha 2?
+=================================
+
+*Release date: 05-Sep-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #9225: Remove the ROT_FOUR and DUP_TOPX opcode, the latter replaced by
+ the new (and simpler) DUP_TOP_TWO. Performance isn't changed, but our
+ bytecode is a bit simplified. Patch by Demur Rumed.
+
+- Issue #9766: Rename poorly named variables exposed by _warnings to prevent
+ confusion with the proper variables names from 'warnings' itself.
+
+- Issue #9212: dict_keys and dict_items now provide the isdisjoint() method, to
+ conform to the Set ABC. Patch by Daniel Urban.
+
+- Issue #9737: Fix a crash when trying to delete a slice or an item from a
+ memoryview object.
+
+- Issue #9549: sys.setdefaultencoding() and PyUnicode_SetDefaultEncoding() are
+ now removed, since their effect was inexistent in 3.x (the default encoding is
+ hardcoded to utf-8 and cannot be changed).
+
+- Issue #7415: PyUnicode_FromEncodedObject() now uses the new buffer API
+ properly. Patch by Stefan Behnel.
+
+- Issue #5553: The Py_LOCAL_INLINE macro now results in inlining on most
+ platforms. Previously, it inlined only when using Microsoft Visual C.
+
+- Issue #9712: Fix tokenize on identifiers that start with non-ascii names.
+
+- Issue #9688: __basicsize__ and __itemsize__ must be accessed as Py_ssize_t.
+
+- Issue #9684: Added a definition for SIZEOF_WCHAR_T to PC/pyconfig.h, to match
+ the pyconfig.h generated by configure on other systems.
+
+- Issue #9666: Only catch AttributeError in hasattr(). All other exceptions that
+ occur during attribute lookup are now propagated to the caller.
+
+- Issue #8622: Add PYTHONFSENCODING environment variable to override the
+ filesystem encoding.
+
+- Issue #5127: The C functions that access the Unicode Database now accept and
+ return characters from the full Unicode range, even on narrow unicode builds
+ (Py_UNICODE_TOLOWER, Py_UNICODE_ISDECIMAL, and others). A visible difference
+ in Python is that unicodedata.numeric() now returns the correct value for
+ large code points, and repr() may consider more characters as printable.
+
+- Issue #9425: Create PyModule_GetFilenameObject() function to get the filename
+ as a unicode object, instead of a byte string. Function needed to support
+ unencodable filenames. Deprecate PyModule_GetFilename() in favor on the new
+ function.
+
+- Issue #8063: Call _PyGILState_Init() earlier in Py_InitializeEx().
+
+- Issue #9612: The set object is now 64-bit clean under Windows.
+
+- Issue #8202: sys.argv[0] is now set to '-m' instead of '-c' when searching for
+ the module file to be executed with the -m command line option.
+
+- Issue #9599: Create PySys_FormatStdout() and PySys_FormatStderr() functions to
+ write a message formatted by PyUnicode_FromFormatV() to sys.stdout and
+ sys.stderr.
+
+- Issue #9542: Create PyUnicode_FSDecoder() function, a ParseTuple converter:
+ decode bytes objects to unicode using PyUnicode_DecodeFSDefaultAndSize(); str
+ objects are output as-is.
+
+- Issue #9203: Computed gotos are now enabled by default on supported compilers
+ (which are detected by the configure script). They can still be disable
+ selectively by specifying --without-computed-gotos.
+
+- Issue #9425: Create PyErr_WarnFormat() function, similar to PyErr_WarnEx() but
+ use PyUnicode_FromFormatV() to format the warning message.
+
+- Issue #8530: Prevent stringlib fastsearch from reading beyond the front of an
+ array.
+
+- Issue #5319: Print an error if flushing stdout fails at interpreter shutdown.
+
+- Issue #9337: The str() of a float or complex number is now identical to its
+ repr().
+
+- Issue #9416: Fix some issues with complex formatting where the output with no
+ type specifier failed to match the str output:
+
+ - format(complex(-0.0, 2.0), '-') omitted the real part from the output,
+ - format(complex(0.0, 2.0), '-') included a sign and parentheses.
+
+Extension Modules
+-----------------
+
+- Issue #8013: time.asctime and time.ctime no longer call system
+ asctime and ctime functions. The year range for time.asctime is now
+ 1900 through maxint. The range for time.ctime is the same as for
+ time.localtime. The string produced by these functions is longer
+ than 24 characters when year is greater than 9999.
+
+- Issue #6608: time.asctime is now checking struct tm fields its input
+ before passing it to the system asctime. Patch by MunSic Jeong.
+
+- Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
+ descriptor is provided. Patch by Pascal Chambon.
+
+- Issue #7736: Release the GIL around calls to opendir() and closedir() in the
+ posix module. Patch by Marcin Bachry.
+
+- Issue #4835: make PyLong_FromSocket_t() and PyLong_AsSocket_t() private to the
+ socket module, and fix the width of socket descriptors to be correctly
+ detected under 64-bit Windows.
+
+- Issue #1027206: Support IDNA in gethostbyname, gethostbyname_ex, getaddrinfo
+ and gethostbyaddr. getnameinfo is now restricted to numeric addresses as
+ input.
+
+- Issue #9214: Set operations on a KeysView or ItemsView in collections now
+ correctly return a set. Patch by Eli Bendersky.
+
+- Issue #5737: Add Solaris-specific mnemonics in the errno module. Patch by
+ Matthew Ahrens.
+
+- Restore GIL in nis_cat in case of error. Decode NIS data to fs encoding, using
+ the surrogate error handler.
+
+- Issue #665761: ``functools.reduce()`` will no longer mask exceptions other
+ than ``TypeError`` raised by the iterator argument.
+
+- Issue #9570: Use PEP 383 decoding in os.mknod and os.mkfifo.
+
+- Issue #6915: Under Windows, os.listdir() didn't release the Global Interpreter
+ Lock around all system calls. Original patch by Ryan Kelly.
+
+- Issue #8524: Add a detach() method to socket objects, so as to put the socket
+ into the closed state without closing the underlying file descriptor.
+
+- Issue #477863: Emit a ResourceWarning at shutdown if gc.garbage is not empty.
+
+- Issue #6869: Fix a refcount problem in the _ctypes extension.
+
+- Issue #5504: ctypes should now work with systems where mmap can't be
+ PROT_WRITE and PROT_EXEC.
+
+- Issue #9507: Named tuple repr will now automatically display the right name in
+ a tuple subclass.
+
+- Issue #9324: Add parameter validation to signal.signal on Windows in order to
+ prevent crashes.
+
+- Issue #9526: Remove some outdated (int) casts that were preventing the array
+ module from working correctly with arrays of more than 2**31 elements.
+
+- Fix memory leak in ssl._ssl._test_decode_cert.
+
+- Issue #8065: Fix memory leak in readline module (from failure to free the
+ result of history_get_history_state()).
+
+- Issue #9450: Fix memory leak in readline.replace_history_item and
+ readline.remove_history_item for readline version >= 5.0.
+
+- Issue #8105: Validate file descriptor passed to mmap.mmap on Windows.
+
+- Issue #8046: Add context manager protocol support and .closed property to mmap
+ objects.
+
+Library
+-------
+
+- Issue #7451: Improve decoding performance of JSON objects, and reduce the
+ memory consumption of said decoded objects when they use the same strings as
+ keys.
+
+- Issue #1100562: Fix deep-copying of objects derived from the list and dict
+ types. Patch by Michele Orrù and Björn Lindqvist.
+
+- Issue #9753: Fixed socket.dup, which did not always work correctly on Windows.
+
+- Issue #9421: Made the get<type> methods consistently accept the vars and
+ default arguments on all parser classes.
+
+- Issue #7005: Fixed output of None values for RawConfigParser.write and
+ ConfigParser.write.
+
+- Issue #8990: array.fromstring() and array.tostring() get renamed to
+ frombytes() and tobytes(), respectively, to avoid confusion. Furthermore,
+ array.frombytes(), array.extend() as well as the array.array() constructor now
+ accept bytearray objects. Patch by Thomas Jollans.
+
+- Issue #808164: Fixed socket.close to avoid references to globals, to avoid
+ issues when socket.close is called from a __del__ method.
+
+- Issue #9706: ssl module provides a better error handling in various
+ circumstances.
+
+- Issue #1868: Eliminate subtle timing issues in thread-local objects by getting
+ rid of the cached copy of thread-local attribute dictionary.
+
+- Issue #1512791: In setframerate() in the wave module, non-integral frame rates
+ are rounded to the nearest integer.
+
+- Issue #8797: urllib2 does a retry for Basic Authentication failure instead of
+ falling into recursion.
+
+- Issue #1194222: email.utils.parsedate now returns RFC2822 compliant four
+ character years even if the message contains RFC822 two character years.
+
+- Issue #8750: Fixed MutableSet's methods to correctly handle reflexive
+ operations on its self, namely x -= x and x ^= x.
+
+- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing error
+ handling when accepting a new connection.
+
+- Issue #9601: ftplib now provides a workaround for non-compliant
+ implementations such as IIS shipped with Windows server 2003 returning invalid
+ response codes for MKD and PWD commands.
+
+- Issue #658749: asyncore's connect() method now correctly interprets winsock
+ errors.
+
+- Issue #9501: Fixed logging regressions in cleanup code.
+
+- Fix functools.total_ordering() to skip methods inherited from object.
+
+- Issue #9572: Importlib should not raise an exception if a directory it thought
+ it needed to create was done concurrently by another process.
+
+- Issue #9617: Signals received during a low-level write operation aren't
+ ignored by the buffered IO layer anymore.
+
+- Issue #843590: Make "macintosh" an alias to the "mac_roman" encoding.
+
+- Create os.fsdecode(): decode from the filesystem encoding with surrogateescape
+ error handler, or strict error handler on Windows.
+
+- Issue #3488: Provide convenient shorthand functions ``gzip.compress`` and
+ ``gzip.decompress``. Original patch by Anand B. Pillai.
+
+- Issue #8807: poplib.POP3_SSL class now accepts a context parameter, which is a
+ ssl.SSLContext object allowing bundling SSL configuration options,
+ certificates and private keys into a single (potentially long-lived)
+ structure.
+
+- Issue #8866: parameters passed to socket.getaddrinfo can now be specified as
+ single keyword arguments.
+
+- Address XXX comment in dis.py by having inspect.py prefer to reuse the dis.py
+ compiler flag values over defining its own.
+
+- Issue #9147: Added dis.code_info() which is similar to show_code() but returns
+ formatted code information in a string rather than displaying on screen.
+
+- Issue #9567: functools.update_wrapper now adds a __wrapped__ attribute
+ pointing to the original callable.
+
+- Issue #3445: functools.update_wrapper now tolerates missing attributes on
+ wrapped callables.
+
+- Issue #5867: Add abc.abstractclassmethod and abc.abstractstaticmethod.
+
+- Issue #9605: posix.getlogin() decodes the username with file filesystem
+ encoding and surrogateescape error handler. Patch written by David Watson.
+
+- Issue #9604: posix.initgroups() encodes the username using the fileystem
+ encoding and surrogateescape error handler. Patch written by David Watson.
+
+- Issue #9603: posix.ttyname() and posix.ctermid() decode the terminal name
+ using the filesystem encoding and surrogateescape error handler. Patch written
+ by David Watson.
+
+- Issue #7647: The posix module now has the ST_RDONLY and ST_NOSUID constants,
+ for use with the statvfs() function. Patch by Adam Jackson.
+
+- Issue #8688: MANIFEST files created by distutils now include a magic comment
+ indicating they are generated. Manually maintained MANIFESTs without this
+ marker will not be overwritten or removed.
+
+- Issue #7467: when reading a file from a ZIP archive, its CRC is checked and a
+ BadZipfile error is raised if it doesn't match (as used to be the case in
+ Python 2.5 and earlier).
+
+- Issue #9550: a BufferedReader could issue an additional read when the original
+ read request had been satisfied, which could block indefinitely when the
+ underlying raw IO channel was e.g. a socket. Report and original patch by
+ Jason V. Miller.
+
+- Issue #3757: thread-local objects now support cyclic garbage collection.
+ Thread-local objects involved in reference cycles will be deallocated timely
+ by the cyclic GC, even if the underlying thread is still running.
+
+- Issue #9452: Add read_file, read_string, and read_dict to the configparser
+ API; new source attribute to exceptions.
+
+- Issue #6231: Fix xml.etree.ElementInclude to include the tail of the current
+ node.
+
+- Issue #8047: Fix the xml.etree serializer to return bytes by default. Use
+ ``encoding="unicode"`` to generate a Unicode string.
+
+- Issue #8280: urllib2's Request method will remove fragments in the url. This
+ is how it is supposed to work, wget and curl do the same. Previous behavior
+ was wrong.
+
+- Issue #6683: For SMTP logins we now try all authentication methods advertised
+ by the server. Many servers are buggy and advertise authentication methods
+ they do not support in reality.
+
+- Issue #8814: function annotations (the ``__annotations__`` attribute) are now
+ included in the set of attributes copied by default by functools.wraps and
+ functools.update_wrapper. Patch by Terrence Cole.
+
+- Issue #2944: asyncore doesn't handle connection refused correctly.
+
+- Issue #4184: Private attributes on smtpd.SMTPChannel made public and deprecate
+ the private attributes. Add tests for smtpd module.
+
+- Issue #3196: email header decoding is now forgiving if an RFC2047 encoded word
+ encoded in base64 is lacking padding.
+
+- Issue #9444: Argparse now uses the first element of prefix_chars as the option
+ character for the added 'h/help' option if prefix_chars does not contain a
+ '-', instead of raising an error.
+
+- Issue #7372: Fix pstats regression when stripping paths from profile data
+ generated with the profile module.
+
+- Issue #9428: Fix running scripts with the profile/cProfile modules from the
+ command line.
+
+- Issue #7781: Fix restricting stats by entry counts in the pstats interactive
+ browser.
+
+- Issue #9209: Do not crash in the pstats interactive browser on invalid regular
+ expressions.
+
+- Update collections.OrderedDict to match the implementation in Py2.7 (based on
+ lists instead of weakly referenced Link objects).
+
+- Issue #8397: Raise an error when attempting to mix iteration and regular reads
+ on a BZ2File object, rather than returning incorrect results.
+
+- Issue #9448: Fix a leak of OS resources (mutexes or semaphores) when
+ re-initializing a buffered IO object by calling its ``__init__`` method.
+
+- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
+ across devices.
+
+- Issue #8826: Properly load old-style "expires" attribute in http.cookies.
+
+- Issue #1690103: Fix initial namespace for code run with trace.main().
+
+- Issue #7395: Fix tracebacks in pstats interactive browser.
+
+- Issue #8230: Fix Lib/test/sortperf.py.
+
+- Issue #8620: when a cmd.Cmd() is fed input that reaches EOF without a final
+ newline, it no longer truncates the last character of the last command line.
+
+- Issue #5146: Handle UID THREAD command correctly in imaplib.
+
+- Issue #5147: Fix the header generated for cookie files written by
+ http.cookiejar.MozillaCookieJar.
+
+- Issue #8198: In pydoc, output all help text to the correct stream when
+ sys.stdout is reassigned.
+
+- Issue #7909: Do not touch paths with the special prefixes ``\\.\`` or ``\\?\``
+ in ntpath.normpath().
+
+- Issue #1286: Allow using fileinput.FileInput as a context manager.
+
+- Add lru_cache() decorator to the functools module.
+
+Tools/Demos
+-----------
+
+- Fix ``Tools/scripts/checkpyc.py`` after PEP 3147.
+
+- Issue #8867: Fix ``Tools/scripts/serve.py`` to work with files containing
+ non-ASCII content.
+
+Tests
+-----
+
+- Issue #9601: Provide a test case for ftplib.parse257.
+
+- Issue #8857: Provide a test case for socket.getaddrinfo.
+
+- Issue #7564: Skip test_ioctl if another process is attached to /dev/tty.
+
+- Issue #8433: Fix test_curses failure with newer versions of ncurses.
+
+- Issue #9496: Provide a test suite for the rlcompleter module. Patch by
+ Michele Orrù.
+
+- Issue #8687: provide a test suite for sched.py module.
+
+Build
+-----
+
+- Issue #1303434: Generate ZIP file containing all PDBs.
+
+- Issue #9193: PEP 3149 is accepted.
+
+- Issue #3101: Helper functions _add_one_to_index_C() and _add_one_to_index_F()
+ become _Py_add_one_to_index_C() and _Py_add_one_to_index_F(), respectively.
+
+- Issue #9700: define HAVE_BROKEN_POSIX_SEMAPHORES under AIX 6.x. Patch by
+ Sébastien Sablé.
+
+- Don't run pgen twice when using make -j.
+
+
+What's New in Python 3.2 Alpha 1?
+=================================
+
+*Release date: 01-Aug-2010*
+
+Core and Builtins
+-----------------
+
+- Issue #8991: convertbuffer() rejects discontigious buffers.
+
+- Issue #7616: Fix copying of overlapping memoryview slices with the Intel
+ compiler.
+
+- Issue #8413: structsequence now subclasses tuple.
+
+- Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the
+ start byte and the continuation byte(s) are now considered invalid, instead of
+ the number of bytes specified by the start byte. E.g.:
+ '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and replaces
+ with U+FFFD only the start byte ('\xf1') and the continuation byte ('\x80')
+ even if '\xf1' is the start byte of a 4-bytes sequence. Previous versions
+ returned a single u'\ufffd'.
+
+- Issue #9011: A negated imaginary literal (e.g., "-7j") now has real part -0.0
+ rather than 0.0. So "-7j" is now exactly equivalent to "-(7j)".
+
+- Be more specific in error messages about positional arguments.
+
+- Issue #8949: "z" format of PyArg_Parse*() functions doesn't accept bytes
+ objects, as described in the documentation.
+
+- Issue #6543: Write the traceback in the terminal encoding instead of utf-8.
+ Fix the encoding of the modules filename. Patch written by Amaury Forgeot
+ d'Arc.
+
+- Issue #9011: Remove buggy and unnecessary (in 3.x) ST->AST compilation code
+ dealing with unary minus applied to a constant. The removed code was mutating
+ the ST, causing a second compilation to fail.
+
+- Issue #850997: mbcs encoding (Windows only) handles errors argument: strict
+ mode raises unicode errors. The encoder only supports "strict" and "replace"
+ error handlers, the decoder only supports "strict" and "ignore" error
+ handlers. Patch written by Mark Hammond.
+
+- Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
+ "w*" format instead. Add tests for "w*" format.
+
+- Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
+ formats if the string contains a null byte/character. Write unit tests for
+ string formats.
+
+- Issue #7490: To facilitate sharing of doctests between 2.x and 3.x test
+ suites, the IGNORE_EXCEPTION_DETAIL directive now also ignores the module
+ location of the raised exception.
+
+- Issue #8969: On Windows, use mbcs codec in strict mode to encode and decode
+ filenames and enable os.fsencode().
+
+- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
+
+- Issue #8941: Decoding big endian UTF-32 data in UCS-2 builds could crash the
+ interpreter with characters outside the Basic Multilingual Plane (higher than
+ 0x10000).
+
+- Issue #8950: (See also issue #5080). Py_ArgParse*() functions now raise
+ TypeError instead of giving a DeprecationWarning when a float is parsed using
+ the 'L' code (for long long). (All other integer codes already raise
+ TypeError in this case.)
+
+- Issue #8922: Normalize the encoding name in PyUnicode_AsEncodedString() to
+ enable shortcuts for upper case encoding name. Add also a shortcut for
+ "iso-8859-1" in PyUnicode_AsEncodedString() and PyUnicode_Decode().
+
+- Issue #8838: Remove codecs.charbuffer_encode() function. The buffer protocol
+ doesn't support "char buffer" anymore in Python 3.
+
+- Issue #8339: Remove "t#" format of PyArg_Parse*() functions, use "s#" or "s*"
+ instead. codecs.charbuffer_encode() now accepts modifiable buffer objects
+ like bytearray.
+
+- Issue #8837: Remove "O?" format of PyArg_Parse*() functions. The format is no
+ used anymore and it was never documented.
+
+- In str.format(), raise a ValueError when indexes to arguments are too large.
+
+- Issue #2844: Make int('42', n) consistently raise ValueError for invalid
+ integers n (including n = -909).
+
+- Issue #8188: Introduce a new scheme for computing hashes of numbers (instances
+ of int, float, complex, decimal.Decimal and fractions.Fraction) that makes it
+ easy to maintain the invariant that hash(x) == hash(y) whenever x and y have
+ equal value.
+
+- Issue #8748: Fix two issues with comparisons between complex and integer
+ objects. (1) The comparison could incorrectly return True in some cases
+ (2**53+1 == complex(2**53) == 2**53), breaking transitivity of equality.
+ (2) The comparison raised an OverflowError for large integers, leading to
+ unpredictable exceptions when combining integers and complex objects in sets
+ or dicts.
+
+- Issue #8766: Initialize _warnings module before importing the first module.
+ Fix a crash if an empty directory called "encodings" exists in sys.path.
+
+- Issue #8589: Decode PYTHONWARNINGS environment variable with the file system
+ encoding and surrogateescape error handler instead of the locale encoding to
+ be consistent with os.environ. Add PySys_AddWarnOptionUnicode() function.
+
+- PyObject_Dump() encodes unicode objects to utf8 with backslashreplace (instead
+ of strict) error handler to escape surrogates.
+
+- Issue #8715: Create PyUnicode_EncodeFSDefault() function: Encode a Unicode
+ object to Py_FileSystemDefaultEncoding with the "surrogateescape" error
+ handler, and return bytes. If Py_FileSystemDefaultEncoding is not set, fall
+ back to UTF-8.
+
+- Enable shortcuts for common encodings in PyUnicode_AsEncodedString() for any
+ error handler, not only the default error handler (strict).
+
+- Issue #8610: Load file system codec at startup, and display a fatal error on
+ failure. Set the file system encoding to utf-8 (instead of None) if getting
+ the locale encoding failed, or if nl_langinfo(CODESET) function is missing.
+
+- PyFile_FromFd() uses PyUnicode_DecodeFSDefault() instead of
+ PyUnicode_FromString() to support surrogates in the filename and use the right
+ encoding.
+
+- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
+
+- PyUnicode_DecodeFSDefaultAndSize() uses surrogateescape error handler.
+
+- Issue #8419: Prevent the dict constructor from accepting non-string keyword
+ arguments.
+
+- Issue #8124: PySys_WriteStdout() and PySys_WriteStderr() don't execute
+ indirectly Python signal handlers anymore because mywrite() ignores exceptions
+ (KeyboardInterrupt).
+
+- Issue #8092: Fix PyUnicode_EncodeUTF8() to support error handler producing
+ unicode string (eg. backslashreplace).
+
+- Issue #8485: PyUnicode_FSConverter() doesn't accept byteearray objects
+ anymore, you have to convert your bytearray filenames to bytes.
+
+- Issue #7332: Remove the 16KB stack-based buffer in
+ PyMarshal_ReadLastObjectFromFile, which doesn't bring any noticeable benefit
+ compared to the dynamic memory allocation fallback. Patch by Charles-François
+ Natali.
+
+- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is
+ passed to bytes or bytearray.
+
+- Issue #7301: Add environment variable $PYTHONWARNINGS.
+
+- Issue #8329: Don't return the same lists from select.select when no fds are
+ changed.
+
+- Issue #8259: 1L << (2**31) no longer produces an 'outrageous shift error' on
+ 64-bit machines. The shift count for either left or right shift is permitted
+ to be up to sys.maxsize.
+
+- Ensure that tokenization of identifiers is not affected by locale.
+
+- Issue #1222585: Added LDCXXSHARED for C++ support. Patch by Arfrever.
+
+- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
+
+- Issue #8211: Save/restore CFLAGS around AC_PROG_CC in configure.in, in case it
+ is set.
+
+- Issue #8226: sys.setfilesystemencoding() raises a LookupError if the encoding
+ is unknown.
+
+- Issue #1583863: A str subclass can now override the __str__ method.
+
+- Issue #8014: Setting a T_UINT or T_PYSSIZET attribute of an object with
+ PyMemberDefs could produce an internal error; raise TypeError instead.
+
+- Issue #7845: Rich comparison methods on the complex type now return
+ NotImplemented rather than raising a TypeError when comparing with an
+ incompatible type; this allows user-defined classes to implement their own
+ comparisons with complex.
+
+- Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt
+ (SIGINT). If an error occurs while importing the site module, the error is
+ printed and Python exits. Initialize the GIL before importing the site module.
+
+- Issue #7173: Generator finalization could invalidate sys.exc_info().
+
+- Issue #7544: Preallocate thread memory before creating the thread to avoid a
+ fatal error in low memory condition.
+
+- Issue #7820: The parser tokenizer restores all bytes in the right if the BOM
+ check fails.
+
+- Handle errors from looking up __prepare__ correctly.
+
+- Issue #5939: Add additional runtime checking to ensure a valid capsule in
+ Modules/_ctypes/callproc.c.
+
+- Issue #7309: Fix unchecked attribute access when converting
+ UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to strings.
+
+- Issue #6902: Fix problem with built-in types format incorrectly with 0
+ padding.
+
+- Issue #7988: Fix default alignment to be right aligned for complex.__format__.
+ Now it matches other numeric types.
+
+- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
+ PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string and
+ PyOS_string_to_double instead. See issue #5835 for the original deprecations.
+
+- Issue #7385: Fix a crash in `MemoryView_FromObject` when `PyObject_GetBuffer`
+ fails. Patch by Florent Xicluna.
+
+- Issue #7788: Fix an interpreter crash produced by deleting a list slice with
+ very large step value.
+
+- Issue #7766: Change sys.getwindowsversion() return value to a named tuple and
+ add the additional members returned in an OSVERSIONINFOEX structure. The new
+ members are service_pack_major, service_pack_minor, suite_mask, and
+ product_type.
+
+- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`) could
+ crash in many places because of the PyByteArray_AS_STRING() macro returning
+ NULL. The macro now returns a statically allocated empty string instead.
+
+- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
+ where the right hand operand is a set of constants, by turning the set into a
+ frozenset and pre-building it as a constant. The comparison operation is made
+ against the constant instead of building a new set each time it is executed (a
+ similar optimization already existed which turned a list of constants into a
+ pre-built tuple). Patch and additional tests by Dave Malcolm.
+
+- Issue #7622: Improve the split(), rsplit(), splitlines() and replace() methods
+ of bytes, bytearray and unicode objects by using a common implementation based
+ on stringlib's fast search. Patch by Florent Xicluna.
+
+- Issue #7632: Fix various str -> float conversion bugs present in 2.7 alpha 2,
+ including: (1) a serious 'wrong output' bug that could occur for long (> 40
+ digit) input strings, (2) a crash in dtoa.c that occurred in debug builds when
+ parsing certain long numeric strings corresponding to subnormal values, (3) a
+ memory leak for some values large enough to cause overflow, and (4) a number
+ of flaws that could lead to incorrectly rounded results.
+
+- The __complex__ method is now looked up on the class of instances to make it
+ consistent with other special methods.
+
+- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
+ `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
+
+- Issue #7604: Deleting an unset slotted attribute did not raise an
+ AttributeError.
+
+- Issue #7534: Fix handling of IEEE specials (infinities, nans, negative zero)
+ in ** operator. The behaviour now conforms to that described in C99 Annex F.
+
+- Issue #1811: improve accuracy and cross-platform consistency for true division
+ of integers: the result of a/b is now correctly rounded for ints a and b (at
+ least on IEEE 754 platforms), and in particular does not depend on the
+ internal representation of an int.
+
+- Issue #6834: replace the implementation for the 'python' and 'pythonw'
+ executables on OSX.
+
+ These executables now work properly with the arch(1) command: ``arch -ppc
+ python`` will start a universal binary version of python in PPC mode (unlike
+ previous releases).
+
+- Issue #7466: Segmentation fault when the garbage collector is called in the
+ middle of populating a tuple. Patch by Florent Xicluna.
+
+- Issue #7419: setlocale() could crash the interpreter on Windows when called
+ with invalid values.
+
+- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
+ mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
+
+- Issue #7085: Fix crash when importing some extensions in a thread on MacOSX
+ 10.6.
+
+- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
+
+- Issue #6970: Remove redundant calls when comparing objects that don't
+ implement the relevant rich comparison methods.
+
+- Issue #7298: Fixes for range and reversed(range(...)). Iteration over
+ range(a, b, c) incorrectly gave an empty iterator when a, b and c fit in C
+ long but the length of the range did not. Also fix several cases where
+ reversed(range(a, b, c)) gave wrong results, and fix a refleak for
+ reversed(range(a, b, c)) with large arguments.
+
+- Issue #7244: itertools.izip_longest() no longer ignores exceptions raised
+ during the formation of an output tuple.
+
+- Issue #3297: On wide unicode builds, do not split unicode characters into
+ surrogates.
+
+- Remove length limitation when constructing a complex number from a string.
+
+- Issue #1087418: Boost performance of bitwise operations for longs.
+
+- Support for AtheOS has been completely removed from the code base. It was
+ disabled since Python 3.0.
+
+- Support for several legacy threading libraries has been disabled. These
+ libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
+ will be entirely removed in 3.3.
+
+- Support for OSF* has been disabled. If nobody stands up, support will be
+ removed in 3.3. See <http://bugs.python.org/issue8606>.
+
+- Peephole constant folding had missed UNARY_POSITIVE.
+
+- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
+ fixes the problem of some exceptions being thrown at shutdown when the
+ interpreter is killed. Patch by Adam Olsen.
+
+- Issue #7147: Remove support for compiling Python without complex number
+ support.
+
+- Issue #7120: logging: Removed import of multiprocessing which is causing crash
+ in GAE.
+
+- Issue #1754094: Improve the stack depth calculation in the compiler. There
+ should be no other effect than a small decrease in memory use. Patch by
+ Christopher Tur Lesniewski-Laas.
+
+- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when using
+ byte values greater than 127. Patch by Derk Drukker.
+
+- Issue #1571184: The Unicode database contains properties for more characters.
+ The tables for code points representing numeric values, white spaces or line
+ breaks are now generated from the official Unicode Character Database files,
+ and include information from the Unihan.txt file.
+
+- Issue #7019: Raise ValueError when unmarshalling bad long data, instead of
+ producing internally inconsistent Python longs.
+
+- Issue #6990: Fix threading.local subclasses leaving old state around after a
+ reference cycle GC which could be recycled by new locals.
+
+- Issue #5460: Fix an ambiguity in the grammar.
+
+- Issue #1766304: Improve performance of membership tests on range objects.
+
+- Issue #6713: Improve performance of integer -> string conversions.
+
+- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
+
+- Issue #6750: A text file opened with io.open() could duplicate its output when
+ writing from multiple threads at the same time.
+
+- Issue #6707: dir() on an uninitialized module caused a crash.
+
+- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
+
+- Issue #6573: set.union() stopped processing inputs if an instance of self
+ occurred in the argument chain.
+
+- Issue #6070: On posix platforms import no longer copies the execute bit from
+ the .py file to the .pyc file if it is set.
+
+- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
+
+- Issue #6428: Since Python 3.0, the __bool__ method must return a bool object,
+ and not an int. Fix the corresponding error message, and the documentation.
+
+- The deprecated PyCObject has been removed.
+
+- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h. This fixes a
+ build failure on HP-UX: int32_t and uint32_t are defined in inttypes.h instead
+ of stdint.h on that platform.
+
+- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and the
+ 'surrogateescape' error handler, a string which contains unpaired surrogates.
+
+- Issue #4856: Remove checks for win NT.
+
+- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its argument
+ to construct a null-initialized bytes object.
+
+- Issue #1023290: Add from_bytes() and to_bytes() methods to integers. These
+ methods allow the conversion of integers to bytes, and vice-versa.
+
+- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes instances
+ from being copied with copy.copy(), and bytes subclasses from being pickled
+ properly.
+
+- Code objects now support weak references.
+
+- Issue #7072: isspace(0xa0) is true on Mac OS X.
+
+- Issue #8084: PEP 370 now conforms to system conventions for framework builds
+ on MacOS X. That is, "python setup.py install --user" will install into
+ "~/Library/Python/2.7" instead of "~/.local".
+
+C-API
+-----
+
+- Issue #2443: A new macro, `Py_VA_COPY`, copies the state of the
+ variable argument list. `Py_VA_COPY` is equivalent to C99
+ `va_copy`, but available on all python platforms.
+
+- PySlice_GetIndicesEx now clips the step to [-PY_SSIZE_T_MAX, PY_SSIZE_T_MAX]
+ instead of [-PY_SSIZE_T_MAX-1, PY_SSIZE_T_MAX]. This makes it safe to do
+ "step = -step" when reversing a slice.
+
+- Issue #5753: A new C API function, `PySys_SetArgvEx`, allows embedders of the
+ interpreter to set sys.argv without also modifying sys.path. This helps fix
+ `CVE-2008-5983
+ <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
+
+- Add PyArg_ValidateKeywordArguments, which checks if all keyword arguments are
+ strings in an efficient manner.
+
+- Issue #8276: PyEval_CallObject() is now only available in macro form. The
+ function declaration, which was kept for backwards compatibility reasons, is
+ now removed (the macro was introduced in 1997!).
+
+- Issue #7767: New function PyLong_AsLongLongAndOverflow added, analogous to
+ PyLong_AsLongAndOverflow.
+
+- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
+ has '\0' at the end.
+
+- Issue #5080: The argument parsing functions PyArg_ParseTuple,
+ PyArg_ParseTupleAndKeywords, PyArg_VaParse, PyArg_VaParseTupleAndKeywords and
+ PyArg_Parse now raise a DeprecationWarning for float arguments passed with the
+ 'L' format code. This will become a TypeError in a future version of Python,
+ to match the behaviour of the other integer format codes.
+
+- Issue #7033: Function ``PyErr_NewExceptionWithDoc()`` added.
+
+- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments) in
+ PyArg_ParseTupleAndKeywords.
+
+- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V) and
+ PyErr_Format, on machines with HAVE_LONG_LONG defined.
+
+- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD in
+ PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be should used for
+ accessing the d_type and d_name members of structures using PyDescr_COMMON.
+
+- Issue #6405: Remove duplicate type declarations in descrobject.h.
+
+- The code flags for old __future__ features are now available again.
+
+- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
+ PyCode_Addr2Line().
+
+- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
+ object at a specified file, function, and line number.
+
+- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
+ ``const char *`` as the string is stored beyond the call.
+
+- Issue #2422: When compiled with the ``--with-valgrind`` option, the pymalloc
+ allocator will be automatically disabled when running under Valgrind. This
+ gives improved memory leak detection when running under Valgrind, while taking
+ advantage of pymalloc at other times.
+
+Library
+-------
+
+- In pdb, when Ctrl-C is entered while defining commands for a breakpoint, the
+ old commands are restored.
+
+- For traceback debugging, the pdb listing now also shows the locations where
+ the exception was originally (re)raised, if it differs from the last line
+ executed (e.g. in case of finally clauses).
+
+- The pdb command "source" has been added. It displays the source code for a
+ given object, if possible.
+
+- The pdb command "longlist" has been added. It displays the whole source code
+ for the current function.
+
+- Issue #1503502: Make pdb.Pdb easier to subclass by putting message and error
+ output into methods.
+
+- Issue #809887: Make the output of pdb's breakpoint deletions more consistent;
+ emit a message when a breakpoint is enabled or disabled.
+
+- Issue #5294: Fix the behavior of pdb's "continue" command when called in the
+ top-level debugged frame.
+
+- Issue #5727: Restore the ability to use readline when calling into pdb in
+ doctests.
+
+- Issue #6719: In pdb, do not stop somewhere in the encodings machinery if the
+ source file to be debugged is in a non-builtin encoding.
+
+- Issue #8048: Prevent doctests from failing when sys.displayhook has been
+ reassigned.
+
+- Issue #8015: In pdb, do not crash when an empty line is entered as a
+ breakpoint command.
+
+- In pdb, allow giving a line number to the "until" command.
+
+- Issue #1437051: For pdb, allow "continue" and related commands in .pdbrc
+ files. Also, add a command-line option "-c" that runs a command as if given
+ in .pdbrc.
+
+- Issue #4179: In pdb, allow "list ." as a command to return to the currently
+ debugged line.
+
+- Issue #4108: In urllib.robotparser, if there are multiple ``User-agent: *``
+ entries, consider the first one.
+
+- Issue #6630: Allow customizing regex flags when subclassing the
+ string.Template class.
+
+- Issue #9411: Allow specifying an encoding for config files in the configparser
+ module.
+
+- Issue #1682942: Improvements to configparser: support alternate delimiters,
+ alternate comment prefixes and empty lines in values.
+
+- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
+
+- Issue #8966: ctypes: Remove implicit bytes-unicode conversion.
+
+- Issue #9378: python -m pickle <pickle file> will now load and display the
+ first object in the pickle file.
+
+- Issue #4770: Restrict binascii module to accept only bytes (as specified).
+ And fix the email package to encode to ASCII instead of ``raw-unicode-escape``
+ before ASCII-to-binary decoding.
+
+- Issue #9384: ``python -m tkinter`` will now display a simple demo applet.
+
+- The default size of the re module's compiled regular expression cache has been
+ increased from 100 to 500 and the cache replacement policy has changed from
+ simply clearing the entire cache on overflow to forgetting the least recently
+ used cached compiled regular expressions. This is a performance win for
+ applications that use a lot of regular expressions and limits the impact of
+ the performance hit anytime the cache is exceeded.
+
+- Issue #7113: Speed up loading in configparser. Patch by Łukasz Langa.
+
+- Issue #9032: XML-RPC client retries the request on EPIPE error. The EPIPE
+ error occurs when the server closes the socket and the client sends a big
+ XML-RPC request.
+
+- Issue #4629: getopt raises an error if an argument ends with "=", whereas
+ getopt doesn't accept a value (eg. --help= is rejected if getopt uses
+ ['help='] long options).
+
+- Issue #7989: Added pure python implementation of the `datetime` module. The C
+ module is renamed to `_datetime` and if available, overrides all classes
+ defined in datetime with fast C impementation. Python implementation is based
+ on the original python prototype for the datetime module by Tim Peters with
+ minor modifications by the PyPy project. The test suite now tests `datetime`
+ module with and without `_datetime` acceleration using the same test cases.
+
+- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork().
+
+- Issue #9323: Fixed a bug in trace.py that resulted in loosing the name of the
+ script being traced. Patch by Eli Bendersky.
+
+- Issue #9282: Fixed --listfuncs option of trace.py. Thanks Eli Bendersky for
+ the patch.
+
+- Issue #3704: http.cookiejar was not properly handling URLs with a / in the
+ parameters.
+
+- Issue #9268: ``pickletools.dis()`` now has an optional *annotate* argument
+ which controls printing of opcode descriptions in ``dis()`` output.
+
+- Issue #1555570: email no longer inserts extra blank lines when a \r\n combo
+ crosses an 8192 byte boundary.
+
+- Issue #9243: Fix sndhdr module and add unit tests, contributed by James Lee.
+
+- ``ast.literal_eval()`` now allows byte literals.
+
+- Issue #9137: Fix issue in MutableMapping.update, which incorrectly treated
+ keyword arguments called 'self' or 'other' specially.
+
+- ``ast.literal_eval()`` now allows set literals.
+
+- Issue #9164: Ensure that sysconfig handles duplicate -arch flags in CFLAGS.
+
+- Issue #7646: The fnmatch pattern cache no longer grows without bound.
+
+- Issue #9136: Fix 'dictionary changed size during iteration' RuntimeError
+ produced when profiling the decimal module. This was due to a dangerous
+ iteration over 'locals()' in Context.__init__.
+
+- Fix extreme speed issue in Decimal.pow when the base is an exact power of 10
+ and the exponent is tiny (for example, ``Decimal(10) **
+ Decimal('1e-999999999')``).
+
+- Issue #9186: Fix math.log1p(-1.0) to raise ValueError, not OverflowError.
+
+- Issue #9130: Fix validation of relative imports in parser module.
+
+- Issue #9128: Fix validation of class decorators in parser module.
+
+- Issue #9094: python -m pickletools will now disassemble pickle files listed in
+ the command line arguments. See output of python -m pickletools -h for more
+ details.
+
+- Issue #5468: urlencode to handle bytes type and other encodings in its query
+ parameter. Patch by Dan Mahn.
+
+- Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop module,
+ ensure that the input string length is a multiple of the frame size.
+
+- Issue #6507: Accept source strings in dis.dis(). Original patch by Daniel
+ Urban.
+
+- Issue #7829: Clearly document that the dis module is exposing an
+ implementation detail that is not stable between Python VMs or releases.
+
+- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
+ raises an exception.
+
+- Issue #9110: Addition of ContextDecorator to contextlib, for creating APIs
+ that act as both context managers and decorators. contextmanager changes to
+ use ContextDecorator.
+
+- Implement importlib.abc.SourceLoader and deprecate PyLoader and PyPycLoader
+ for removal in Python 3.4.
+
+- Issue #9064: pdb's "up" and "down" commands now accept an optional argument
+ giving the number of frames to go.
+
+- Issue #9018: os.path.normcase() now raises a TypeError if the argument is not
+ ``str`` or ``bytes``.
+
+- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag on an
+ OpenSSL structure.
+
+- Issue #8682: The ssl module now temporary increments the reference count of a
+ socket object got through ``PyWeakref_GetObject``, so as to avoid possible
+ deallocation while the object is still being used.
+
+- Issue #1368368: FancyURLOpener class changed to throw an Exception on wrong
+ password instead of presenting an interactive prompt. Older behavior can be
+ obtained by passing retry=True to http_error_xxx methods of FancyURLOpener.
+
+- Issue #8720: Fix regression caused by fix for #4050 by making getsourcefile
+ smart enough to find source files in the linecache.
+
+- Issue #5610: feedparser no longer eats extra characters at the end of a body
+ part if the body part ends with a ``\r\n``.
+
+- Issue #8986: math.erfc was incorrectly raising OverflowError for values
+ between -27.3 and -30.0 on some platforms.
+
+- Issue #8784: Set tarfile default encoding to 'utf-8' on Windows.
+
+- Issue #8966: If a ctypes structure field is an array of c_char, convert its
+ value to bytes instead of str (as done for c_char and c_char_p).
+
+- Issue #8188: Comparisons between Decimal and Fraction objects are now
+ permitted, returning a result based on the exact numerical values of the
+ operands. This builds on issue #2531, which allowed Decimal-to-float
+ comparisons; all comparisons involving numeric types (bool, int, float,
+ complex, Decimal, Fraction) should now act as expected.
+
+- Issue #8897: Fix sunau module, use bytes to write the header. Patch written by
+ Thomas Jollans.
+
+- Issue #8899: time.struct_time now has class and attribute docstrings.
+
+- Issue #6470: Drop UNC prefix in FixTk.
+
+- Issue #4768: base64 encoded email body parts were incorrectly stored as binary
+ strings. They are now correctly converted to strings.
+
+- Issue #8833: tarfile created hard link entries with a size field != 0 by
+ mistake.
+
+- Charset.body_encode now correctly handles base64 encoding by encoding with the
+ output_charset before calling base64mime.encode. Passes the tests from 2.x
+ issue #1368247.
+
+- Issue #8845: sqlite3 Connection objects now have a read-only in_transaction
+ attribute that is True iff there are uncommitted changes.
+
+- Issue #1289118: datetime.timedelta objects can now be multiplied by float and
+ divided by float and int objects. Results are rounded to the nearest multiple
+ of timedelta.resolution with ties resolved using round-half-to-even method.
+
+- Issue #7150: Raise OverflowError if the result of adding or subtracting
+ timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
+
+- Issue #8806: add SSL contexts support to ftplib.
+
+- Issue #4769: Fix main() function of the base64 module, use sys.stdin.buffer
+ and sys.stdout.buffer (instead of sys.stdin and sys.stdout) to use the bytes
+ API.
+
+- Issue #8770: Now sysconfig displays information when it's called as a script.
+ Initial idea by Sridhar Ratnakumar.
+
+- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
+ Fredrik Håård.
+
+- Issue #8540: Decimal module: rename the Context._clamp attribute to
+ Context.clamp and make it public. This is useful in creating contexts that
+ correspond to the decimal interchange formats specified in IEEE 754.
+
+- Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM
+ twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and
+ StreamWriter classes.
+
+- Issue #3798: sys.exit(message) writes the message to sys.stderr file, instead
+ of the C file stderr, to use stderr encoding and error handler.
+
+- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
+ of files without one.
+
+- Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when
+ comparing to a non-mapping.
+
+- Issue #8774: tabnanny uses the encoding cookie (#coding:...) to use the
+ correct encoding.
+
+- Issue #4870: Add an `options` attribute to SSL contexts, as well as several
+ ``OP_*`` constants to the `ssl` module. This allows to selectively disable
+ protocol versions, when used in combination with `PROTOCOL_SSLv23`.
+
+- Issue #8759: Fixed user paths in sysconfig for posix and os2 schemes.
+
+- Issue #8663: distutils.log emulates backslashreplace error handler. Fix
+ compilation in a non-ASCII directory if stdout encoding is ASCII (eg. if
+ stdout is not a TTY).
+
+- Issue #8513: os.get_exec_path() supports b'PATH' key and bytes value.
+ subprocess.Popen() and os._execvpe() support bytes program name. Add
+ os.supports_bytes_environ flag: True if the native OS type of the environment
+ is bytes (eg. False on Windows).
+
+- Issue #8633: tarfile is now able to read and write archives with "raw" binary
+ pax headers as described in POSIX.1-2008.
+
+- Issue #1285086: Speed up urllib.parse functions: quote, quote_from_bytes,
+ unquote, unquote_to_bytes.
+
+- Issue #8688: Distutils now recalculates MANIFEST everytime.
+
+- Issue #8477: ssl.RAND_egd() and ssl._test_decode_cert() support str with
+ surrogates and bytes for the filename.
+
+- Issue #8550: Add first class ``SSLContext`` objects to the ssl module.
+
+- Issue #8681: Make the zlib module's error messages more informative when the
+ zlib itself doesn't give any detailed explanation.
+
+- The audioop module now supports sound fragments of length greater than 2**31
+ bytes on 64-bit machines, and is PY_SSIZE_T_CLEAN.
+
+- Issue #4972: Add support for the context manager protocol to the ftplib.FTP
+ class.
+
+- Issue #8664: In py_compile, create __pycache__ when the compiled path is
+ given.
+
+- Issue #8514: Add os.fsencode() function (Unix only): encode a string to bytes
+ for use in the file system, environment variables or the command line.
+
+- Issue #8571: Fix an internal error when compressing or decompressing a chunk
+ larger than 1GB with the zlib module's compressor and decompressor objects.
+
+- Issue #8603: Support bytes environmental variables on Unix: Add os.environb
+ mapping and os.getenvb() function. os.unsetenv() encodes str argument to the
+ file system encoding with the surrogateescape error handler (instead of
+ utf8/strict) and accepts bytes. posix.environ keys and values are now bytes.
+
+- Issue #8573: asyncore _strerror() function might throw ValueError.
+
+- Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing error
+ messages when accessing undefined class attributes because of the cheap
+ inheritance with the underlying socket object. The cheap inheritance has been
+ deprecated.
+
+- Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills.
+ Patch by Tres Seaver.
+
+- Issue #8390: tarfile uses surrogateescape as the default error handler
+ (instead of replace in read mode or strict in write mode).
+
+- Issue #7755: Use an unencumbered audio file for tests.
+
+- Issue #8621: uuid.uuid4() returned the same sequence of values in the parent
+ and any children created using ``os.fork`` on MacOS X 10.6.
+
+- Issue #8567: Fix precedence of signals in Decimal module: when a Decimal
+ operation raises multiple signals and more than one of those signals is
+ trapped, the specification determines the order in which the signals should be
+ handled. In many cases this order wasn't being followed, leading to the wrong
+ Python exception being raised.
+
+- Issue #7865: The close() method of ``io`` objects should not swallow
+ exceptions raised by the implicit flush(). Also qensure that calling close()
+ several times is supported. Patch by Pascal Chambon.
+
+- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
+ gc.DEBUG_STATS.
+
+- Issue #8354: The siginterrupt setting is now preserved for all signals, not
+ just SIGCHLD.
+
+- Issue #7192: webbrowser.get("firefox") now works on Mac OS X, as does
+ webbrowser.get("safari").
+
+- Issue #8464: tarfile no longer creates files with execute permissions set when
+ mode="w|" is used.
+
+- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions of
+ the Linux kernel. Patch by Yaniv Aknin.
+
+- Issue #8295: Added shutil.unpack_archive.
+
+- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
+ It should correctly return an empty response now.
+
+- Issue #8546: Reject None given as the buffering argument to _pyio.open.
+
+- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
+ Sridhar Ratnakumar.
+
+- Issue #6656: fix locale.format_string to handle escaped percents
+ and mappings.
+
+- Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown, where
+ the method could block indefinitely if called just before the event loop
+ started running. This also fixes the occasional freezes witnessed in
+ test_httpservers.
+
+- Issue #8524: When creating an SSL socket, the timeout value of the original
+ socket wasn't retained (instead, a socket with a positive timeout would be
+ turned into a non-blocking SSL socket).
+
+- Issue #5103: SSL handshake would ignore the socket timeout and block
+ indefinitely if the other end didn't respond.
+
+- The do_handshake() method of SSL objects now adjusts the blocking mode of the
+ SSL structure if necessary (as other methods already do).
+
+- Issue #8391: os.execvpe() and os.getenv() supports unicode with surrogates and
+ bytes strings for environment keys and values.
+
+- Issue #8467: Pure Python implementation of subprocess encodes the error
+ message using surrogatepass error handler to support surrogates in the
+ message.
+
+- Issue #8468: bz2.BZ2File() accepts str with surrogates and bytes filenames.
+
+- Issue #8451: Syslog module now uses basename(sys.argv[0]) instead of the
+ string "python" as the *ident*. openlog() arguments are all optional and
+ keywords.
+
+- Issue #8108: Fix the unwrap() method of SSL objects when the socket has a
+ non-infinite timeout. Also make that method friendlier with applications
+ wanting to continue using the socket in clear-text mode, by disabling
+ OpenSSL's internal readahead. Thanks to Darryl Miles for guidance.
+
+- Issue #8496: make mailcap.lookup() always return a list, rather than an
+ iterator. Patch by Gregory Nofi.
+
+- Issue #8195: Fix a crash in sqlite Connection.create_collation() if the
+ collation name contains a surrogate character.
+
+- Issue #8484: Load all ciphers and digest algorithms when initializing the _ssl
+ extension, such that verification of some SSL certificates doesn't fail
+ because of an "unknown algorithm".
+
+- Issue #6547: Added the ignore_dangling_symlinks option to shutil.copytree.
+
+- Issue #1540112: Now allowing the choice of a copy function in shutil.copytree.
+
+- Issue #4814: timeout parameter is now applied also for connections resulting
+ from PORT/EPRT commands.
+
+- Issue #8463: added missing reference to bztar in shutil's documentation.
+
+- Issue #7154: urllib.request can now detect the proxy settings on OSX 10.6 (as
+ long as the user didn't specify 'automatic proxy configuration').
+
+- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response code
+ as stated in RFC-959 at chapter 5.4.
+
+- Issue #8394: _ctypes.dlopen() accepts bytes, bytearray and str with
+ surrogates.
+
+- Issue #850728: Add a *timeout* parameter to the `acquire()` method of
+ `threading.Semaphore` objects. Original patch by Torsten Landschoff.
+
+- Issue #8322: Add a *ciphers* argument to SSL sockets, so as to change the
+ available cipher list. Helps fix test_ssl with OpenSSL 1.0.0.
+
+- Issue #8393: subprocess accepts bytes, bytearray and str with surrogates for
+ the current working directory.
+
+- Issue #7606: XML-RPC traceback stored in X-traceback is now encoded to ASCII
+ using backslashreplace error handler.
+
+- Issue #8412: os.system() now accepts bytes, bytearray and str with surrogates.
+
+- Issue #2987: RFC2732 support for urlparse (IPv6 addresses). Patch by Tony
+ Locke and Hans Ulrich Niedermann.
+
+- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
+
+- Issue #7316: The acquire() method of lock objects in the ``threading``
+ module now takes an optional timeout argument in seconds. Timeout support
+ relies on the system threading library, so as to avoid a semi-busy wait loop.
+
+- Issue #8383: pickle and pickletools use surrogatepass error handler when
+ encoding unicode as utf8 to support lone surrogates and stay compatible with
+ Python 2.x and 3.x.
+
+- Issue #7585: difflib context and unified diffs now place a tab between
+ filename and date, conforming to the 'standards' they were originally designed
+ to follow. This improves compatibility with patch tools.
+
+- Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022
+ character sets will now consistently use a Content-Transfer-Encoding of 7bit
+ rather than sometimes being marked as 8bit.
+
+- Issue #8375: test_distutils now checks if the temporary directory are still
+ present before it cleans them.
+
+- Issue #8374: Update the internal alias table in the ``locale`` module to
+ cover recent locale changes and additions.
+
+- Issue #8321: Give access to OpenSSL version numbers from the `ssl` module,
+ using the new attributes `ssl.OPENSSL_VERSION`, `ssl.OPENSSL_VERSION_INFO` and
+ `ssl.OPENSSL_VERSION_NUMBER`.
+
+- Add functools.total_ordering() and functools.cmp_to_key().
+
+- Issue #8257: The Decimal construct now accepts a float instance directly,
+ converting that float to a Decimal of equal value:
+
+ >>> Decimal(1.1)
+ Decimal('1.100000000000000088817841970012523233890533447265625')
+
+- Issue #8294: The Fraction constructor now accepts Decimal and float instances
+ directly.
+
+- Issue #7279: Comparisons involving a Decimal signaling NaN now signal
+ InvalidOperation instead of returning False. (Comparisons involving a quiet
+ NaN are unchanged.) Also, Decimal quiet NaNs are now hashable; Decimal
+ signaling NaNs remain unhashable.
+
+- Issue #2531: Comparison operations between floats and Decimal instances now
+ return a result based on the numeric values of the operands; previously they
+ returned an arbitrary result based on the relative ordering of id(float) and
+ id(Decimal). See also issue #8188, which adds Decimal-to-Fraction
+ comparisons.
+
+- Added a subtract() method to collections.Counter().
+
+- Issue #8233: When run as a script, py_compile.py optionally takes a single
+ argument `-` which tells it to read files to compile from stdin. Each line is
+ read on demand and the named file is compiled immediately. (Original patch by
+ Piotr Ożarowski).
+
+- Backwards incompatible change: Unicode codepoints line tabulation (0x0B) and
+ form feed (0x0C) are now considered linebreaks, as specified in Unicode
+ Standard Annex #14. See issue #7643. http://www.unicode.org/reports/tr14/
+
+- Comparisons using one of <, <=, >, >= between a complex instance and a
+ Fractions instance now raise TypeError instead of returning True/False. This
+ makes Fraction <=> complex comparisons consistent with int <=> complex, float
+ <=> complex, and complex <=> complex comparisons.
+
+- Issue #8139: ossaudiodev didn't initialize its types properly, therefore some
+ methods (such as oss_mixer_device.fileno()) were not available. Initial patch
+ by Bertrand Janin.
+
+- Issue #8205: Remove the "Modules" directory from sys.path when Python is
+ running from the build directory (POSIX only).
+
+- Issue #7512: shutil.copystat() could raise an OSError when the filesystem
+ didn't support chflags() (for example ZFS under FreeBSD). The error is now
+ silenced.
+
+- Issue #7860: platform.uname now reports the correct 'machine' type when Python
+ is running in WOW64 mode on 64 bit Windows.
+
+- Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets.
+ Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking
+ reads and writes are always retried by OpenSSL itself.
+
+- Issue #4282: Fix the main function of the profile module for a non-ASCII
+ script, open the file in binary mode and not in text mode with the default
+ (utf8) encoding.
+
+- Issue #8179: Fix macpath.realpath() on a non-existing path.
+
+- Issue #8024: Update the Unicode database to 5.2.
+
+- Issue #8168: py_compile now handles files with utf-8 BOMS.
+
+- ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is
+ detected.
+
+- Issue #6716/2: Backslash-replace error output in compilall.
+
+- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
+ with Tcl/Tk-8.5.
+
+- Issue #8140: extend compileall to compile single files. Add -i option.
+
+- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of the
+ locale.
+
+- The internals of the subprocess module on POSIX systems have been replaced by
+ an extension module (_posixsubprocess) so that the fork()+exec() can be done
+ safely without the possibility of deadlock in multithreaded applications.
+
+- subprocess.Popen now has restore_signals and start_new_session features. The
+ default of restore_signals=True is a new behavior compared to earlier Python
+ versions. This means that signals such as SIGPIPE are not ignored by default
+ in subprocesses launched by Python (Issue #1652).
+
+- Issue #6472: The xml.etree package is updated to ElementTree 1.3. The
+ cElementTree module is updated too.
+
+- Issue #7774: Set sys.executable to an empty string if argv[0] has been set to
+ an non existent program name and Python is unable to retrieve the real program
+ name.
+
+- Issue #7880: Fix sysconfig when the python executable is a symbolic link.
+
+- Issue #6509: fix re.sub to work properly when the pattern, the string, and the
+ replacement were all bytes. Patch by Antoine Pitrou.
+
+- The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure
+ bugs and allows loading SQLite extensions from shared libraries.
+
+- Issue #1054943: Fix ``unicodedata.normalize('NFC', text)`` for the Public
+ Review Issue #29 (http://unicode.org/review/pr-29.html).
+
+- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
+ reset also the pointer to the current pointer context.
+
+- Issue #7232: Add support for the context manager protocol to the TarFile
+ class.
+
+- Issue #7250: Fix info leak of os.environ across multi-run uses of
+ wsgiref.handlers.CGIHandler.
+
+- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
+
+- Issue #691291: codecs.open() should not convert end of lines on reading and
+ writing.
+
+- Issue #7869: logging: improved diagnostic for format-time errors.
+
+- Issue #7868: logging: added loggerClass attribute to Manager.
+
+- logging: Implemented PEP 391.
+
+- Issue #1537721: Add a writeheader() method to csv.DictWriter.
+
+- Issue #7959: ctypes callback functions are now registered correctly with the
+ cycle garbage collector.
+
+- Issue #5801: removed spurious empty lines in wsgiref.
+
+- Issue #6666: fix bug in trace.py that applied the list of directories to be
+ ignored only to the first file. Noted by Bogdan Opanchuk.
+
+- Issue #7597: curses.use_env() can now be called before initscr(). Noted by
+ Kan-Ru Chen.
+
+- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
+
+- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
+ messages parsed by email.Parser.HeaderParser.
+
+- Issue #7361: Importlib was not properly checking the number of bytes in
+ bytecode file when it was less then 8 bytes.
+
+- Issue #7633: In the decimal module, Context class methods (with the exception
+ of canonical and is_canonical) now accept instances of int and long wherever a
+ Decimal instance is accepted, and implicitly convert that argument to Decimal.
+ Previously only some arguments were converted.
+
+- Issue #7835: shelve should no longer produce mysterious warnings during
+ interpreter shutdown.
+
+- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">") in XML
+ processing instructions and comments. These raw characters are allowed by the
+ XML specification, and are necessary when outputting e.g. PHP code in a
+ processing instruction. Patch by Neil Muller.
+
+- Issue #6233: ElementTree failed converting unicode characters to XML entities
+ when they could't be represented in the requested output encoding. Patch by
+ Jerry Chen.
+
+- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to specify the
+ compression type.
+
+- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
+ specified, rather than fall through to AF_PACKET (in the `socket` module).
+ Also, raise ValueError rather than TypeError when an unknown TIPC address type
+ is specified. Patch by Brian Curtin.
+
+- Issue #6939: Fix file I/O objects in the `io` module to keep the original file
+ position when calling `truncate()`. It would previously change the file
+ position to the given argument, which goes against the tradition of
+ ftruncate() and other truncation APIs. Patch by Pascal Chambon.
+
+- Issue #7610: Reworked implementation of the internal
+ ``zipfile.ZipExtFile`` class used to represent files stored inside an
+ archive. The new implementation is significantly faster and can be wrapped in
+ a ``io.BufferedReader`` object for more speedups. It also solves an
+ issue where interleaved calls to `read()` and `readline()` give wrong results.
+ Patch by Nir Aides.
+
+- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
+ allowing for a maximum number of tasks within the pool to be completed by the
+ worker before that worker is terminated, and a new one created to replace it.
+
+- Issue #7792: Registering non-classes to ABCs raised an obscure error.
+
+- Issue #7785: Don't accept bytes in FileIO.write().
+
+- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
+
+- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
+ the release file is empty.
+
+- Issue #7561: Fix crashes when using bytearray objects with the posix
+ module.
+
+- Issue #1670765: Prevent email.generator.Generator from re-wrapping headers in
+ multipart/signed MIME parts, which fixes one of the sources of invalid
+ modifications to such parts by Generator.
+
+- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`. Patch
+ by Florent Xicluna, along with some additional tests.
+
+- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a 1-byte
+ argument. Patch by Victor Stinner.
+
+- Issue #3299: Fix possible crash in the _sre module when given bad argument
+ values in debug mode. Patch by Victor Stinner.
+
+- Issue #2846: Add support for gzip.GzipFile reading zero-padded files. Patch
+ by Brian Curtin.
+
+- Issue #7681: Use floor division in appropiate places in the wave module.
+
+- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
+ Extension extra options may change the output without changing the .c
+ file). Initial patch by Collin Winter.
+
+- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes gcc
+ when it has a fully qualified configuration prefix. Initial patch by Arfrever.
+
+- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against the
+ destruction of weakref'ed objects while iterating.
+
+- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by Victor
+ Stinner.
+
+- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
+ properly handles EINTR within the read, readline, write & flush methods. The
+ socket.sendall() method now properly handles interrupted system calls.
+
+- Issue #7471: Improve the performance of GzipFile's buffering mechanism, and
+ make it implement the `io.BufferedIOBase` ABC to allow for further speedups by
+ wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
+
+- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
+ parameter to allow specifying where your connections come from.
+
+- socket.create_connection now accepts an optional source_address parameter.
+
+- Issue #5511: now zipfile.ZipFile can be used as a context manager. Initial
+ patch by Brian Curtin.
+
+- Issue #7556: Make sure Distutils' msvc9compile reads and writes the MSVC XML
+ Manifest file in text mode so string patterns can be used in regular
+ expressions.
+
+- Issue #7552: Removed line feed in the base64 Authorization header in the
+ Distutils upload command to avoid an error when PyPI reads it. This occurs on
+ long passwords. Initial patch by JP St. Pierre.
+
+- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
+ Tatsuhiro Tsujikawa.
+
+- Issue #4757: `zlib.compress` and other methods in the zlib module now raise a
+ TypeError when given an `str` object (rather than a `bytes`-like object).
+ Patch by Victor Stinner and Florent Xicluna.
+
+- Issue #7349: Make methods of file objects in the io module accept None as an
+ argument where file-like objects (ie StringIO and BytesIO) accept them to mean
+ the same as passing no argument.
+
+- Issue #7357: tarfile no longer suppresses fatal extraction errors by default.
+
+- Issue #5949: added check for correct lineends in input from IMAP server in
+ imaplib.
+
+- Add count() and reverse() methods to collections.deque().
+
+- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
+
+- Issue #6986: Fix crash in the JSON C accelerator when called with the wrong
+ parameter types. Patch by Victor Stinner.
+
+- Issue #7457: added a read_pkg_file method to
+ distutils.dist.DistributionMetadata.
+
+- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
+ TLS with authentication credentials.
+
+- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is generated
+ in Distutils. Patch by Stephen Emslie.
+
+- Issue #4120: Drop reference to CRT from manifest when building extensions with
+ msvc9compiler.
+
+- Issue #7333: The `posix` module gains an `initgroups()` function providing
+ access to the initgroups(3) C library call on Unix systems which implement it.
+ Patch by Jean-Paul Calderone.
+
+- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
+ ownership when the group is not forced, because the group may be different
+ from the user's group and inherit from its container when the test is run.
+
+- Issue #4486: When an exception has an explicit cause, do not print its
+ implicit context too. This affects the `traceback` module as well as built-in
+ exception printing.
+
+- Issue #1515: Enable use of deepcopy() with instance methods. Patch by Robert
+ Collins.
+
+- Issue #7403: logging: Fixed possible race condition in lock creation.
+
+- Issue #6845: Add restart support for binary upload in ftplib. The
+ `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
+ argument. Patch by Pablo Mouzo.
+
+- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()` method
+ returning the total number of seconds in the duration. Patch by Brian
+ Quinlan.
+
+- Issue #7133: SSL objects now support the new buffer API.
+
+- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters.
+
+- Issue #6123: tarfile now opens empty archives correctly and consistently
+ raises ReadError on empty files.
+
+- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can be 2.
+
+- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
+ of __str__.
+
+- Issue #7341: Close the internal file object in the TarFile constructor in case
+ of an error.
+
+- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
+ Windows box. Help provided by David Bolen.
+
+- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using TLS
+ or SSL. Patch by Giampaolo Rodola'.
+
+- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch.
+
+- Issue #4969: The mimetypes module now reads the MIME database from the
+ registry under Windows. Patch by Gabriel Genellina.
+
+- Issue #6816: runpy now provides a run_path function that allows Python code to
+ execute file paths that refer to source or compiled Python files as well as
+ zipfiles, directories and other valid sys.path entries that contain a
+ __main__.py file. This allows applications that run other Python scripts to
+ support the same flexibility as the CPython command line itself.
+
+- Issue #7318: multiprocessing now uses a timeout when it fails to establish a
+ connection with another process, rather than looping endlessly. The default
+ timeout is 20 seconds, which should be amply sufficient for local connections.
+
+- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
+ unpickled. This fixes crashes under Windows when trying to run
+ test_multiprocessing in verbose mode.
+
+- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
+ argument added to the TextTestRunner constructor allowing a different result
+ class to be used without having to subclass.
+
+- Issue #7588: ``unittest.TextTestResult.getDescription`` now includes the test
+ name in failure reports even if the test has a docstring.
+
+- Issue #3001: Add a C implementation of recursive locks which is used by
+ default when instantiating a `threading.RLock` object. This makes recursive
+ locks as fast as regular non-recursive locks (previously, they were slower by
+ 10x to 15x).
+
+- Issue #7282: Fix a memory leak when an RLock was used in a thread other than
+ those started through `threading.Thread` (for example, using
+ `_thread.start_new_thread()`).
+
+- Issue #7187: Importlib would not silence the IOError raised when trying to
+ write new bytecode when it was made read-only.
+
+- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
+ which are part of a reference cycle.
+
+- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
+ objects on 64-bit systems. Patch by Michael Broghton.
+
+- Issue #6896: mailbox.Maildir now invalidates its internal cache each time a
+ modification is done through it. This fixes inconsistencies and test failures
+ on systems with slightly bogus mtime behaviour.
+
+- Issue #7246 & Issue #7208: getpass now properly flushes input before reading
+ from stdin so that existing input does not confuse it and lead to incorrect
+ entry or an IOError. It also properly flushes it afterwards to avoid the
+ terminal echoing the input afterwards on OSes such as Solaris.
+
+- Issue #7233: Fix a number of two-argument Decimal methods to make sure that
+ they accept an int or long as the second argument. Also fix buggy handling of
+ large arguments (those with coefficient longer than the current precision) in
+ shift and rotate.
+
+- Issue #4750: Store the basename of the original filename in the gzip FNAME
+ header as required by RFC 1952.
+
+- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
+ Distutils.
+
+- Issue #7218: Fix test_site for win32, the directory comparison was done with
+ an uppercase.
+
+- Issue #7205: Fix a possible deadlock when using a BZ2File object from
+ several threads at once.
+
+- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
+
+- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
+ larger than emax.
+
+- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
+ platforms, and assorted locale fixes by Derk Drukker.
+
+- Issue #5833: Fix extra space character in readline completion with the GNU
+ readline library version 6.0.
+
+- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment.
+
+- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
+ anachronisms in the code which were a relic of 1.5.2 compatibility.
+
+- Issue #7082: When falling back to the MIME 'name' parameter, the correct place
+ to look for it is the Content-Type header.
+
+- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
+ builtin tokenizer.
+
+- Issue #7048: Force Decimal.logb to round its result when that result is too
+ large to fit in the current precision.
+
+- Issue #6236, #6348: Fix various failures in the I/O library under AIX and
+ other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
+
+- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...) does now
+ always result in NULL.
+
+- Issue #5042: Structure sub-subclass does now initialize correctly with base
+ class positional arguments.
+
+- Issue #6882: Import uuid creates zombies processes.
+
+- Issue #6635: Fix profiler printing usage message.
+
+- Issue #6856: Add a filter keyword argument to TarFile.add().
+
+- Issue #6888: pdb's alias command was broken when no arguments were given.
+
+- Issue #6857: Default format() alignment should be '>' for Decimal instances.
+
+- Issue #6795: int(Decimal('nan')) now raises ValueError instead of returning
+ NaN or raising InvalidContext. Also, fix infinite recursion in
+ long(Decimal('nan')).
+
+- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats with no
+ type specifier.
+
+- Issue #6239: ctypes.c_char_p return value must return bytes.
+
+- Issue #6838: Use a list to accumulate the value instead of repeatedly
+ concatenating strings in http.client's HTTPResponse._read_chunked providing a
+ significant speed increase when downloading large files servend with a
+ Transfer-Encoding of 'chunked'.
+
+- Trying to import a submodule from a module that is not a package, ImportError
+ should be raised, not AttributeError.
+
+- When the globals past to importlib.__import__() has __package__ set to None,
+ fall back to computing what __package__ should be instead of giving up.
+
+- Raise a TypeError when the name of a module to be imported for
+ importlib.__import__ is not a string (was raising an AttributeError before).
+
+- Allow the fromlist passed into importlib.__import__ to be any iterable.
+
+- Have importlib raise ImportError if None is found in sys.modules.
+
+- Issue #6054: Do not normalize stored pathnames in tarfile.
+
+- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
+ payloads are now ordered by integer value rather than lexicographically.
+
+- Issue #1356969: Add missing info methods in tix.HList.
+
+- Issue #1522587: New constants and methods for the tix.Grid widget.
+
+- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
+
+- Issue #1119673: Do not override tkinter.Text methods when creating a
+ ScrolledText.
+
+- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
+
+- Issue #1135: Add the XView and YView mix-ins to avoid duplicating the xview*
+ and yview* methods.
+
+- Issue #6629: Fix a data corruption issue in the new I/O library, which could
+ occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
+ "wb+" mode) after having buffered a certain amount of data for reading. This
+ bug was not present in the pure Python implementation.
+
+- Issue #6622: Fix "local variable 'secret' referenced before assignment" bug in
+ POP3.apop.
+
+- Issue #2715: Remove remnants of Carbon.File from binhex module.
+
+- Issue #6595: The Decimal constructor now allows arbitrary Unicode decimal
+ digits in input, as recommended by the standard. Previously it was restricted
+ to accepting [0-9].
+
+- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
+ DO/DONT correctly.
+
+- Issue #1424152: Fix for http.client, urllib.request to support SSL while
+ working through proxy. Original patch by Christopher Li, changes made by
+ Senthil Kumaran.
+
+- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
+ loaders that allow for modules to be executed. Both importlib.abc.PyLoader and
+ PyPycLoader inherit from this class and provide implementations in relation to
+ other methods required by the ABCs.
+
+- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
+ the documentation said it did even though the code in PyLoader relied on the
+ abstract method required by ResourceLoader.
+
+- Issue #6431: Make Fraction type return NotImplemented when it doesn't know how
+ to handle a comparison without loss of precision. Also add correct handling
+ of infinities and nans for comparisons with float.
+
+- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
+
+- Issue #6358: The exit status of a command started with os.popen() was reported
+ differently than it did with python 2.x.
+
+- Issue #6323: The pdb debugger did not exit when running a script with a syntax
+ error.
+
+- Issue #3392: The subprocess communicate() method no longer fails in select()
+ when file descriptors are large; communicate() now uses poll() when possible.
+
+- Issue #6369: Fix an RLE decompression bug in the binhex module.
+
+- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
+
+- The deprecated function string.maketrans has been removed.
+
+- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
+ sys.path.
+
+- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
+
+- The os.get_exec_path() function to return the list of directories that will be
+ searched for an executable when launching a subprocess was added.
+
+- Issue #7481: When a threading.Thread failed to start it would leave the
+ instance stuck in initial state and present in threading.enumerate().
+
+- Issue #1068268: The subprocess module now handles EINTR in internal os.waitpid
+ and os.read system calls where appropriate.
+
+- Issue #6729: Added ctypes.c_ssize_t to represent ssize_t.
+
+- Issue #6247: The argparse module has been added to the standard library.
+
+- Issue #8235: _socket: Add the constant ``SO_SETFIB``. SO_SETFIB is a socket
+ option available on FreeBSD 7.1 and newer.
+
+- Issue #9315: Fix for the trace module to record correct class name
+ for tracing methods.
+
+Extension Modules
+-----------------
+
+- Issue #9959: Tweak formula used for computing math.log of an integer,
+ making it marginally more accurate for exact powers of 2.
+
+- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+
+- Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly
+ compared to other unix systems. In particular, os.getgroups() does not reflect
+ any changes made using os.setgroups() but basicly always returns the same
+ information as the id command. os.getgroups() can now return more than 16
+ groups on MacOSX.
+
+- Issue #6095: Make directory argument to os.listdir optional.
+
+- Issue #9277: Fix bug in struct.pack for bools in standard mode (e.g.,
+ struct.pack('>?')): if conversion to bool raised an exception then that
+ exception wasn't properly propagated on machines where char is unsigned.
+
+- Issue #5180: Fixed a bug that prevented loading 2.x pickles in 3.x python when
+ they contain instances of old-style classes.
+
+- Issue #9165: Add new functions math.isfinite and cmath.isfinite, to accompany
+ existing isinf and isnan functions.
+
+- Issue #1578269: Implement os.symlink for Windows 6.0+. Patch by Jason
+ R. Coombs.
+
+- In struct.pack, correctly propogate exceptions from computing the truth of an
+ object in the '?' format.
+
+- Issue #9000: datetime.timezone objects now have eval-friendly repr.
+
+- In the math module, correctly lookup __trunc__, __ceil__, and __floor__ as
+ special methods.
+
+- Issue #9005: Prevent utctimetuple() from producing year 0 or year 10,000.
+ Prior to this change, timezone adjustment in utctimetuple() could produce
+ tm_year value of 0 or 10,000. Now an OverflowError is raised in these edge
+ cases.
+
+- Issue #6641: The ``datetime.strptime`` method now supports the ``%z``
+ directive. When the ``%z`` directive is present in the format string, an
+ aware ``datetime`` object is returned with ``tzinfo`` bound to a
+ ``datetime.timezone`` instance constructed from the parsed offset. If both
+ ``%z`` and ``%Z`` are present, the data in ``%Z`` field is used for timezone
+ name, but ``%Z`` data without ``%z`` is discarded.
+
+- Issue #5094: The ``datetime`` module now has a simple concrete class
+ implementing ``datetime.tzinfo`` interface. Instances of the new class,
+ ``datetime.timezone``, return fixed name and UTC offset from their
+ ``tzname(dt)`` and ``utcoffset(dt)`` methods. The ``dst(dt)`` method always
+ returns ``None``. A class attribute, ``utc`` contains an instance
+ representing the UTC timezone. Original patch by Rafe Kaplan.
+
+- Issue #8973: Add __all__ to struct module; this ensures that help(struct)
+ includes documentation for the struct.Struct class.
+
+- Issue #3129: Trailing digits in struct format string are no longer ignored.
+ For example, "1" or "ilib123" are now invalid formats and cause
+ ``struct.error`` to be raised. Patch by Caleb Deveraux.
+
+- Issue #7384: If the system readline library is linked against ncurses, the
+ curses module must be linked against ncurses as well. Otherwise it is not safe
+ to load both the readline and curses modules in an application.
+
+- Issue #2810: Fix cases where the Windows registry API returns ERROR_MORE_DATA,
+ requiring a re-try in order to get the complete result.
+
+- Issue #8692: Optimize math.factorial: replace the previous naive algorithm
+ with an improved 'binary-split' algorithm that uses fewer multiplications and
+ allows many of the multiplications to be performed using plain C integer
+ arithmetic instead of PyLong arithmetic. Also uses a lookup table for small
+ arguments.
+
+- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
+ overflow checks in the audioop module.
+
+- Issue #8644: The accuracy of td.total_seconds() has been improved (by
+ calculating with integer arithmetic instead of float arithmetic internally):
+ the result is now always correctly rounded, and is equivalent to ``td /
+ timedelta(seconds=1)``.
+
+- Issue #2706: Allow division of a timedelta by another timedelta: timedelta /
+ timedelta, timedelta % timedelta, timedelta // timedelta and divmod(timedelta,
+ timedelta) are all supported.
+
+- Issue #8314: Fix unsigned long long bug in libffi on Sparc v8.
+
+- Issue #8300: When passing a non-integer argument to struct.pack with any
+ integer format code, struct.pack first attempts to convert the non-integer
+ using its __index__ method. If that method is non-existent or raises
+ TypeError it goes on to try the __int__ method, as described below.
+
+- Issue #8142: Update libffi to the 3.0.9 release.
+
+- Issue #6949: Allow the _dbm extension to be built with db 4.8.x.
+
+- Issue #6544: Fix a reference leak in the kqueue implementation's error
+ handling.
+
+- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
+ msvcr100.dll is not a platform assembly anymore.
+
+- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
+
+- Issue #7078: Set struct.__doc__ from _struct.__doc__.
+
+- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
+
+- Issue #6877: It is now possible to link the readline extension to the libedit
+ readline emulation on OSX 10.5 or later.
+
+- Issue #6848: Fix curses module build failure on OS X 10.6.
+
+- Fix a segfault that could be triggered by expat with specially formed input.
+
+- Issue #6561: '\d' in a regex now matches only characters with Unicode category
+ 'Nd' (Number, Decimal Digit). Previously it also matched characters with
+ category 'No'.
+
+- Issue #4509: Array objects are no longer modified after an operation failing
+ due to the resize restriction in-place when the object has exported buffers.
+
+- Issue #2389: Array objects are now pickled in a portable manner.
+
+- Expat: Fix DoS via XML document with malformed UTF-8 sequences
+ (CVE_2009_3560).
+
+- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a thread
+ could raise an incorrect RuntimeError about not holding the import lock. The
+ import lock is now reinitialized after fork.
+
+- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
+ parameter on some platforms such as OS X.
+
+- Build the ossaudio extension on GNU/kFreeBSD.
+
+- Issue #7347: winreg: Add CreateKeyEx and DeleteKeyEx, as well as fix a bug in
+ the return value of QueryReflectionKey.
+
+- Issue #7567: PyCurses_setupterm: Don't call ``setupterm`` twice.
+
+Build
+-----
+
+- Use OpenSSL 1.0.0a on Windows.
+
+- Issue #9280: Make sharedinstall depend on sharedmods.
+
+- Issue #9189: Make a user-specified CFLAGS, CPPFLAGS, or LDFLAGS setting
+ override the configure and makefile defaults, without deleting options the
+ user didn't intend to override. Developers should no longer need to specify
+ OPT or EXTRA_CFLAGS, although those variables are still present for
+ backward-compatibility.
+
+- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
+
+- Issue #1759169, #8864: Drop _XOPEN_SOURCE on Solaris, define it for
+ multiprocessing only.
+
+- Issue #8625: Turn off optimization in --with-pydebug builds with gcc.
+ (Optimization was unintentionally turned on in gcc --with-pydebug builds as a
+ result of the issue #1628484 fix, combined with autoconf's strange choice of
+ default CFLAGS produced by AC_PROG_CC for gcc.)
+
+- Issue #3646: It is now easily possible to install a Python framework into your
+ home directory on MacOSX, see Mac/README for more information.
+
+- Issue #3928: os.mknod() now available in Solaris, also.
+
+- Issue #3326: Build Python without -fno-strict-aliasing when the gcc does not
+ give false warnings.
+
+- Issue #1628484: The Makefile doesn't ignore the CFLAGS environment variable
+ anymore. It also forwards the LDFLAGS settings to the linker when building a
+ shared library.
+
+- Issue #6716: Quote -x arguments of compileall in MSI installer. Exclude 2to3
+ tests from compileall.
+
+- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
+
+- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the private
+ memory allocation scheme in dtoa.c and use PyMem_Malloc and PyMem_Free
+ instead. Also disable caching of powers of 5.
+
+- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
+
+- Issue #6943: Use pkg-config to find the libffi headers when the
+ --with-system-ffi flag is used.
+
+- Issue #7609: Add a --with-system-expat option that causes the system's expat
+ library to be used for the pyexpat module instead of the one included with
+ Python.
+
+- Issue #7589: Only build the nis module when the correct header files are
+ found.
+
+- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
+
+- Issue #5792: Extend the short float repr support to x86 systems using
+ icc or suncc.
+
+- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it compiles
+ correctly under gcc on x86-64. This fixes a reported problem with the
+ --with-tsc build on x86-64.
+
+- Issue #6802: Fix build issues on MacOSX 10.6.
+
+- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
+
+- Issue #4601: 'make install' did not set the appropriate permissions on
+ directories.
+
+- Issue #5390: Add uninstall icon independent of whether file extensions are
+ installed.
+
+- Issue #7541: When using ``python-config`` with a framework install the
+ compiler might use the wrong library.
+
+- python-config now supports multiple options on the same command line.
+
+- Issue #8509: Fix quoting in help strings and code snippets in configure.in.
+
+- Issue #8510: Update to autoconf2.65.
+
+Documentation
+-------------
+
+- Issue #9817: Add expat COPYING file; add expat, libffi and expat licenses
+ to Doc/license.rst.
+
+- Issue #9524: Document that two CTRL* signals are meant for use only
+ with os.kill.
+
+- Issue #9255: Document that the 'test' package is meant for internal Python use
+ only.
+
+- A small WSGI server was added as Tools/scripts/serve.py, and is used to
+ implement a local documentation server via 'make serve' in the doc directory.
+
+- Updating `Using Python` documentation to include description of CPython's -J
+ and -X options.
+
+- Document that importing a module that has None in sys.modules triggers an
+ ImportError.
+
+- Issue #6556: Fixed the Distutils configuration files location explanation for
+ Windows.
+
+- Update python manual page (options -B, -O0, -s, environment variables
+ PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
+
+- Issue #8909: Added the size of the bitmap used in the installer created by
+ distutils' bdist_wininst. Patch by Anatoly Techtonik.
+
+Tests
+-----
+
+- Issue #9251: test_threaded_import didn't fail when run through regrtest if the
+ import lock was disabled.
+
+- Issue #8605: Skip test_gdb if Python is compiled with optimizations.
+
+- Issue #7449: Skip test_socketserver if threading support is disabled.
+
+- Issue #8672: Add a zlib test ensuring that an incomplete stream can be handled
+ by a decompressor object without errors (it returns incomplete uncompressed
+ data).
+
+- Issue #8533: regrtest uses backslashreplace error handler for stdout to avoid
+ UnicodeEncodeError (write non-ASCII character to stdout using ASCII encoding).
+
+- Issue #8576: Remove use of find_unused_port() in test_smtplib and
+ test_multiprocessing. Patch by Paul Moore.
+
+- Issue #7449: Fix many tests to support Python compiled without thread
+ support. Patches written by Jerry Seutter.
+
+- Issue #8108: test_ftplib's non-blocking SSL server now has proper handling of
+ SSL shutdowns.
+
+- Issues #8279, #8330, #8437, #8480, #8495: Fix test_gdb failures, patch written
+ by Dave Malcolm.
+
+- Issue #3864: Skip three test_signal tests on freebsd6 because they fail if any
+ thread was previously started, most likely due to a platform bug.
+
+- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
+
+- Issue #8248: Add some tests for the bool type. Patch by Gregory Nofi.
+
+- Issue #8263: Now regrtest.py will report a failure if it receives a
+ KeyboardInterrupt (SIGINT).
+
+- Issue #8180 and #8207: Fix test_pep277 on OS X and add more tests for special
+ Unicode normalization cases.
+
+- Issue #7783: test.support.open_urlresource invalidates the outdated files from
+ the local cache.
+
+- Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
+ effectively raised.
+
+- The four path modules (genericpath, macpath, ntpath, posixpath) share a common
+ TestCase for some tests: test_genericpath.CommonTest.
+
+- Print platform information when running the whole test suite, or using the
+ --verbose flag.
+
+- Issue #767675: enable test_pep277 on POSIX platforms with Unicode-friendly
+ filesystem encoding.
+
+- Issue #6292: for the moment at least, the test suite runs cleanly if python is
+ run with the -OO flag. Tests requiring docstrings are skipped.
+
+- Issue #7712: test.support gained a new `temp_cwd` context manager which is now
+ also used by regrtest to run all the tests in a temporary directory. The
+ original CWD is saved in `support.SAVEDCWD`. Thanks to Florent Xicluna who
+ helped with the patch.
+
+- Issue #7924: Fix an intermittent 'XXX undetected error' failure in test_capi
+ (only seen so far on platforms where the curses module wasn't built), due to
+ an uncleared exception.
+
+- Issue #7728: test_timeout was changed to use support.bind_port instead of a
+ hard coded port.
+
+- Issue #7376: Instead of running a self-test (which was failing) when called
+ with no arguments, doctest.py now gives a usage message.
+
+- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
+
+- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
+ instead of a hardcoded port number in test_rapid_restart.
+
+- Issue #7431: Use TESTFN in test_linecache instead of trying to create a file
+ in the Lib/test directory, which might be read-only for the user running the
+ tests.
+
+- Issue #7324: Add a sanity check to regrtest argument parsing to catch the case
+ of an option with no handler.
+
+- Issue #7312: Add a -F flag to run the selected tests in a loop until a test
+ fails. Can be combined with -j.
+
+- Issue #6551: test_zipimport could import and then destroy some modules of the
+ encodings package, which would make other tests fail further down the road
+ because the internally cached encoders and decoders would point to empty
+ global variables.
+
+- Issue #7295: Do not use a hardcoded file name in test_tarfile.
+
+- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
+ primitives such as Lock, RLock, Condition, Event and Semaphore.
+
+- Issue #7248 (part 2): Use a unique temporary directory for importlib source
+ tests instead of tempfile.tempdir. This prevents the tests from sharing state
+ between concurrent executions on the same system.
+
+- Issue #7248: In importlib.test.source.util a try/finally block did not make
+ sure that some referenced objects actually were created in the block before
+ calling methods on the object.
+
+- Issue #7222: Make thread "reaping" more reliable so that reference
+ leak-chasing test runs give sensible results. The previous method of reaping
+ threads could return successfully while some Thread objects were still
+ referenced. This also introduces a new private function:
+ ``_thread._count()``.
+
+- Issue #7151: Fixed regrtest -j so that output to stderr from a test no longer
+ runs the risk of causing the worker thread to fail.
+
+- Issue #7055: test___all__ now greedily detects all modules which have an
+ __all__ attribute, rather than using a hardcoded and incomplete list.
+
+- Issue #7058: Added save/restore for things like sys.argv and cwd to
+ runtest_inner in regrtest, with warnings if the called test modifies them, and
+ a new section in the summary report at the end.
+
+- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
+
+- Fixed tests in importlib.test.source.test_abc_loader that were masking the
+ proper exceptions that should be raised for missing or improper code object
+ bytecode.
+
+- Removed importlib's custom test discovery code and switched to
+ unittest.TestLoader.discover().
+
+Tools/Demos
+-----------
+
+- Issue #5464, #8974: Implement plural forms in msgfmt.py.
+
+- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
+ added to the `Tools/` directory. They were previously living in the sandbox.
+
+
+What's New in Python 3.1?
+=========================
+
+*Release date: 27-June-2009*
+
+Core and Builtins
+-----------------
+
+- Issue #6334: Fix bug in range length calculation for ranges with
+ large arguments.
+
+- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
+ because it wasn't recognized as a sequence).
+
+Library
+-------
+
+- Issue #6126: Fixed pdb command-line usage.
+
+- Issue #6314: logging: performs extra checks on the "level" argument.
+
+- Issue #6274: Fixed possible file descriptors leak in subprocess.py
+
+- Accessing io.StringIO.buffer now raises an AttributeError instead of
+ io.UnsupportedOperation.
+
+- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
+ (On Unix)
+
+- Issue #1202: zipfile module would cause a struct.error when attempting to
+ store files with a CRC32 > 2**31-1.
+
+Extension Modules
+-----------------
+
+- Issue #5590: Remove unused global variable in pyexpat extension.
+
+
+What's New in Python 3.1 Release Candidate 2?
+=============================================
+
+*Release date: 13-June-2009*
+
+Core and Builtins
+-----------------
+
+- Fixed SystemError triggered by "range([], 1, -1)".
+
+- Issue #5924: On Windows, a large PYTHONPATH environment variable
+ (more than 255 characters) would be completely ignored.
+
+- Issue #4547: When debugging a very large function, it was not always
+ possible to update the lineno attribute of the current frame.
+
+- Issue #5330: C functions called with keyword arguments were not reported by
+ the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
+
+Library
+-------
+
+- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
+ expression string pattern was trying to match against a bytes returned by
+ Popen. Tested under win32 to build the py-postgresql project.
+
+- Issue #6258: Support AMD64 in bdist_msi.
+
+- Issue #6195: fixed doctest to no longer try to read 'source' data from
+ binary files.
+
+- Issue #5262: Fixed bug in next rollover time computation in
+ TimedRotatingFileHandler.
+
+- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
+ errors property. Additionally, the errors and encoding properties of StringIO
+ are always None now.
+
+- Issue #6137: The pickle module now translates module names when loading
+ or dumping pickles with a 2.x-compatible protocol, in order to make data
+ sharing and migration easier. This behaviour can be disabled using the
+ new `fix_imports` optional argument.
+
+- Removed the ipaddr module.
+
+- Issue #3613: base64.{encode,decode}string are now called
+ base64.{encode,decode}bytes which reflects what type they accept and return.
+ The old names are still there as deprecated aliases.
+
+- Issue #5767: Remove sgmlop support from xmlrpc.client.
+
+- Issue #6150: Fix test_unicode on wide-unicode builds.
+
+- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
+ parameters.
+
+Windows
+-------
+
+- Issue #6221: Delete test registry key before running the test.
+
+- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
+
+C-API
+-----
+
+- Issue #5735: Python compiled with --with-pydebug should throw an
+ ImportError when trying to import modules compiled without
+ --with-pydebug, and vice-versa.
+
+
+Build
+-----
+
+- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
+ added LIBS to OS X framework builds.
+
+- Issue #5809: Specifying both --enable-framework and --enable-shared is
+ an error. Configure now explicity tells you about this.
+
+
+
+What's New in Python 3.1 release candidate 1?
+=============================================
+
+*Release date: 2009-05-30*
+
+Core and Builtins
+-----------------
+
+- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
+ of the command line.
+
+- Issue #6012: Add cleanup support to O& argument parsing.
+
+- Issue #6089: Fixed str.format with certain invalid field specifiers
+ that would raise SystemError.
+
+- Issue #5982: staticmethod and classmethod now expose the wrapped
+ function with __func__.
+
+- Added support for multiple context managers in the same with-statement.
+ Deprecated contextlib.nested() which is no longer needed.
+
+- Issue #5829: complex("1e500") no longer raises OverflowError. This
+ makes it consistent with float("1e500") and interpretation of real
+ and imaginary literals.
+
+- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
+
+- Issue #5994: the marshal module now has docstrings.
+
+- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
+ (1) inf and nan strings with trailing whitespace were incorrectly
+ rejected; (2) parsing of strings representing infinities and nans
+ was locale aware; and (3) the interpretation of fromhex('-nan')
+ didn't match that of float('-nan').
+
+Library
+-------
+
+- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
+
+- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
+
+- Issue #6121: pydoc now ignores leading and trailing spaces in the
+ argument to the 'help' function.
+
+- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
+ arguments for strings with a space in them.
+
+- collections.namedtuple() was not working with the following field
+ names: cls, self, tuple, itemgetter, and property.
+
+- In unittest, using a skipping decorator on a class is now equivalent to
+ skipping every test on the class. The ClassTestSuite class has been removed.
+
+- Issue #6050: Don't fail extracting a directory from a zipfile if
+ the directory already exists.
+
+- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
+ than an int, which makes some operations possible under 64-bit Linux (e.g.
+ DN_MULTISHOT with F_NOTIFY).
+
+- Issue #5761: Add the name of the underlying file to the repr() of various
+ IO objects.
+
+- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
+ by Musashi Tamura, tests by Marcin Bachry.
+
+- Issue #1983: Fix functions taking or returning a process identifier to use
+ the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
+ a process identifier type wider than the standard C integer type.
+
+- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
+ Patch by Farhan Ahmad, test by Marcin Bachry.
+
+- Issue #2116: Weak references and weak dictionaries now support copy()ing and
+ deepcopy()ing.
+
+- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
+
+- Issue #5918: Fix a crash in the parser module.
+
+- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
+
+- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
+ library. This means, for example, that opening an UTF-16 text file in
+ append mode doesn't add a BOM at the end of the file if the file isn't
+ empty.
+
+- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
+ file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
+ corrects a pydoc regression.
+
+- Issue #5955: aifc's close method did not close the file it wrapped,
+ now it does. This also means getfp method now returns the real fp.
+
+Installation
+------------
+
+- Issue #6047: fullinstall has been removed because Python 3's executable will
+ now be known as python3.
+
+- Lib/smtpd.py is no longer installed as a script.
+
+Extension Modules
+-----------------
+
+- Issue #3061: Use wcsftime for time.strftime where available.
+
+- Issue #4873: Fix resource leaks in error cases of pwd and grp.
+
+- Issue #6093: Fix off-by-one error in locale.strxfrm.
+
+- The _functools and _locale modules are now built into the libpython shared
+ library instead of as extension modules.
+
+Build
+-----
+
+- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
+ and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
+ Clinton Roy.
+
+Tests
+-----
+
+- Issue #5442: Tests for importlib were not properly skipping case-sensitivity
+ tests on darwin even when the OS was installed on a case-sensitive
+ filesystem. Also fixed tests that should not be run when
+ sys.dont_write_bytecode is true.
+
+
+What's New in Python 3.1 beta 1?
+================================
+
+*Release date: 2009-05-06*
+
+Core and Builtins
+-----------------
+
+- Issue #5914: Add new C API function PyOS_string_to_double, and
+ deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
+
+- Issue #3382: float.__format__, complex.__format__, and %-formatting
+ no longer map 'F' to 'f'. Because of issue #5859 (below), this only
+ affects nan -> NAN and inf -> INF.
+
+- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
+ in all operations, including splitdrive, split, etc. splitunc() now issues
+ a PendingDeprecation warning.
+
+- Issue #5920: For float.__format__, change the behavior with the
+ empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
+ to be like 'g' but with at least one decimal point and with a
+ default precision of 12. Previously, the behavior the same but with
+ a default precision of 6. This more closely matches str(), and
+ reduces surprises when adding alignment flags to the empty
+ presentation type. This also affects the new complex.__format__ in
+ the same way.
+
+- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
+
+- Issue #5890: in subclasses of 'property' the __doc__ attribute was
+ shadowed by classtype's, even if it was None. property now
+ inserts the __doc__ into the subclass instance __dict__.
+
+- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
+ sequences. Patch by Nick Barnes and Victor Stinner.
+
+- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
+
+- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
+ received a new method, detach(). detach() disconnects the underlying stream
+ from the buffer or text IO and returns it.
+
+- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
+ floats with absolute value over 1e50. Also remove length
+ restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
+ 12.34 no longer raise an exception.
+
+- Issue #1588: Add complex.__format__. For example,
+ format(complex(1, 2./3), '.5') now produces a sensible result.
+
+- Issue #5864: Fix empty format code formatting for floats so that it
+ never gives more than the requested number of significant digits.
+
+- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
+ new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
+
+- Issue #5835: Deprecate PyOS_ascii_formatd.
+
+- Issue #4971: Fix titlecase for characters that are their own
+ titlecase, but not their own uppercase.
+
+- Issue #5283: Setting __class__ in __del__ caused a segfault.
+
+- Issue #5816: complex(repr(z)) now recovers z exactly, even when
+ z involves nans, infs or negative zeros.
+
+- Issue #3166: Make int -> float conversions correctly rounded.
+
+- Issue #1869 (and many duplicates): make round(x, n) correctly
+ rounded for a float x, by using the decimal <-> binary conversions
+ from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
+ consistently agrees with format(x, '.2f').
+
+- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
+ some builtin types.
+
+- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
+
+- Issue #5515: str.format() type 'n' combined with commas and leading
+ zeros no longer gives odd results with ints and floats.
+
+- Implement PEP 378, Format Specifier for Thousands Separator, for
+ floats.
+
+- The str function switches to exponential notation at
+ 1e11, not 1e12. This avoids printing 13 significant digits in
+ situations where only 12 of them are correct. Example problem
+ value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
+ long time.)
+
+- Issue #1580: On most platforms, use a 'short' float repr: for a
+ finite float x, repr(x) now outputs a string based on the shortest
+ sequence of decimal digits that rounds to x. Previous behaviour was
+ to output 17 significant digits and then strip trailing zeros.
+ Another minor difference is that the new repr switches to
+ exponential notation at 1e16 instead of the previous 1e17; this
+ avoids misleading output in some cases.
+
+ There's a new sys attribute sys.float_repr_style, which takes
+ the value 'short' to indicate that we're using short float repr,
+ and 'legacy' if the short float repr isn't available for one
+ reason or another.
+
+ The float repr change involves incorporating David Gay's 'perfect
+ rounding' code into the Python core (it's in Python/dtoa.c). As a
+ secondary consequence, all string-to-float and float-to-string
+ conversions (including all float formatting operations) will be
+ correctly rounded on these platforms.
+
+ See issue #1580 discussions for details of platforms for which
+ this change does not apply.
+
+- Issue #5759: float() didn't call __float__ on str subclasses.
+
+- The string.maketrans() function is deprecated; there is a new static method
+ maketrans() on the bytes and bytearray classes. This removes confusion about
+ the types string.maketrans() is supposed to work with, and mirrors the
+ methods available on the str class.
+
+- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
+ its clarity and its speed.
+
+- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add ``do { ... } while (0)``
+ to avoid compiler warnings.
+
+- Issue #3739: The unicode-internal encoder now reports the number of characters
+ consumed like any other encoder (instead of the number of bytes).
+
+Installation
+------------
+
+- Issue #5756: Install idle and pydoc with a 3 suffix.
+
+Library
+-------
+
+- Issue #8203: Fix IDLE Credits dialog: view_file() uses its encoding argument.
+
+- Issue #5311: bdist_msi can now build packages that do not depend on a
+ specific Python version.
+
+- Issue #5150: IDLE's format menu now has an option to strip trailing
+ whitespace.
+
+- Issue #5940: distutils.command.build_clib.check_library_list was not doing
+ the right type checkings anymore.
+
+- Issue #4875: On win32, ctypes.util.find_library does no longer
+ return directories.
+
+- Issue #5142: Add the ability to skip modules while stepping to pdb.
+
+- Issue #1309567: Fix linecache behavior of stripping subdirectories when
+ looking for files given by a relative filename.
+
+- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
+ turtle demos in Demo/turtle.
+
+- Issue #5692: In ``zipfile.Zipfile``, fix wrong path calculation when
+ extracting a file to the root directory.
+
+- Issue #5913: os.listdir() should fail for empty path on windows.
+
+- Issue #5084: unpickling now interns the attribute names of pickled objects,
+ saving memory and avoiding growth in size of subsequent pickles. Proposal
+ and original patch by Jake McGuire.
+
+- The json module now works exclusively with str and not bytes.
+
+- Issue #3959: The ipaddr module has been added to the standard library.
+ Contributed by Google.
+
+- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
+ error when a named pipe is encountered, rather than blocking infinitely.
+
+- Issue #5857: tokenize.tokenize() now returns named tuples.
+
+- Issue #4305: ctypes should now build again on mipsel-linux-gnu
+
+- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
+ string is already in normalized form, by performing a quick check beforehand.
+ Original patch by Rauli Ruohonen.
+
+- Issue #5853: calling a function of the mimetypes module from several threads
+ at once could hit the recursion limit if the mimetypes database hadn't been
+ initialized before.
+
+- Issue #5854: Updated __all__ to include some missing names and remove some
+ names which should not be exported.
+
+- Issue #3102: All global symbols that the _ctypes extension defines
+ are now prefixed with 'Py' or '_ctypes'.
+
+- Issue #5041: ctypes does now allow pickling wide character.
+
+- Issue #5812: For the two-argument form of the Fraction constructor,
+ Fraction(m, n), m and n are permitted to be arbitrary Rational
+ instances.
+
+- Issue #5812: Fraction('1e6') is valid: more generally, any string
+ that's valid for float() is now valid for Fraction(), with the
+ exception of strings representing NaNs and infinities.
+
+- Issue #5734: BufferedRWPair was poorly tested and had several glaring
+ bugs. Patch by Brian Quinlan.
+
+- Issue #1161031: fix readwrite select flag handling: POLLPRI now
+ results in a handle_expt_event call, not handle_read_event, and POLLERR
+ and POLLNVAL now call handle_close, not handle_expt_event. Also,
+ dispatcher now has an 'ignore_log_types' attribute for suppressing
+ log messages, which is set to 'warning' by default.
+
+- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
+ new arguments introduced in 2.5.
+
+- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
+ makeunicodedata.py and regenerated the Unicode database (This fixes
+ u'\u1d79'.lower() == '\x00').
+
+Extension Modules
+-----------------
+
+- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
+ pwd.
+
+- Issue #5463: In struct module, remove deprecated float coercion
+ for integer type codes: struct.pack('L', 0.3) should now raise
+ an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
+ The version number has been bumped to 0.3.
+
+- Issue #5359: Readd the Berkeley DB detection code to allow _dbm be built
+ using Berkeley DB.
+
+Tests
+-----
+
+- Issue #5354: New test support function import_fresh_module() makes
+ it easy to import both normal and optimised versions of modules.
+ test_heapq and test_warnings have been adjusted to use it, tests for
+ other modules with both C and Python implementations in the stdlib
+ can be adjusted to use it over time.
+
+- Issue #5837: Certain sequences of calls to set() and unset() for
+ support.EnvironmentVarGuard objects restored the environment variables
+ incorrectly on __exit__.
+
+C-API
+-----
+
+- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
+
+
+What's New in Python 3.1 alpha 2?
+=================================
+
+*Release date: 2009-4-4*
+
+Core and Builtins
+-----------------
+
+- Implement PEP 378, Format Specifier for Thousands Separator, for
+ integers.
+
+- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
+
+- Issue #5499: The 'c' code for argument parsing functions now only accepts a
+ byte, and the 'C' code only accepts a unicode character.
+
+- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
+ when hitting the recursion limit under certain circumstances.
+
+- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
+
+- Fix a segfault when running test_exceptions with coverage, caused by
+ insufficient checks in accessors of Exception.__context__.
+
+- Issue #5604: non-ASCII characters in module name passed to
+ imp.find_module() were converted to UTF-8 while the path is
+ converted to the default filesystem encoding, causing nonsense.
+
+- Issue #5126: str.isprintable() returned False for space characters.
+
+- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
+ the end sys.path, for compatibility with the system install of Python.
+
+- Issue #4688: Add a heuristic so that tuples and dicts containing only
+ untrackable objects are not tracked by the garbage collector. This can
+ reduce the size of collections and therefore the garbage collection overhead
+ on long-running programs, depending on their particular use of datatypes.
+
+- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
+ improve its performance. Long divisions and remainder operations
+ are now between 50% and 150% faster.
+
+- Issue #4258: Make it possible to use base 2**30 instead of base
+ 2**15 for the internal representation of integers, for performance
+ reasons. Base 2**30 is enabled by default on 64-bit machines. Add
+ --enable-big-digits option to configure, which overrides the
+ default. Add sys.int_info structseq to provide information about
+ the internal format.
+
+- Issue #4474: PyUnicode_FromWideChar now converts characters outside
+ the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
+ and sizeof(Py_UNICODE) == 2.
+
+- Issue #5237: Allow auto-numbered fields in str.format(). For
+ example: '{} {}'.format(1, 2) == '1 2'.
+
+- Issue #5392: when a very low recursion limit was set, the interpreter would
+ abort with a fatal error after the recursion limit was hit twice.
+
+- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
+ short file names.
+
+Library
+-------
+
+- Issue #2625: added missing items() call to the for loop in
+ mailbox.MH.get_message().
+
+- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
+ error substitutions from non-strict codec error callbacks in
+ incrementalencoder and StreamWriter.
+
+- Issue #5656: Fix the coverage reporting when running the test suite with
+ the -T argument.
+
+- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
+
+- Issue #5624: Fix the _winreg module name still used in several modules.
+
+- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
+
+- Issue #5619: Multiprocessing children disobey the debug flag and causes
+ popups on windows buildbots. Patch applied to work around this issue.
+
+- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
+
+- Issue #5387: Fixed mmap.move crash by integer overflow.
+
+- Issue #5261: Patch multiprocessing's semaphore.c to support context
+ manager use: "with multiprocessing.Lock()" works now.
+
+- Issue #5236: Change time.strptime() to only take strings. Didn't work with
+ bytes already but the failure was non-obvious.
+
+- Issue #5177: Multiprocessing's SocketListener class now uses
+ socket.SO_REUSEADDR on all connections so that the user no longer needs
+ to wait 120 seconds for the socket to expire.
+
+- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
+
+- Issue #1174606: Calling read() without arguments of an unbounded file
+ (typically /dev/zero under Unix) could crash the interpreter.
+
+- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
+ io.BufferedRandom have been deprecated for removal in Python 3.2.
+
+- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
+ forever on incomplete input. That caused tarfile.open() to hang when used
+ with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
+ partial bzip2 compressed data.
+
+- Issue #2110: Add support for thousands separator and 'n' type
+ specifier to Decimal.__format__
+
+- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
+ '>' alignment characters.
+
+- The error detection code in FileIO.close() could fail to reflect the `errno`
+ value, and report it as -1 instead.
+
+- Issue #5016: FileIO.seekable() could return False if the file position
+ was negative when truncated to a C int. Patch by Victor Stinner.
+
+Extension Modules
+-----------------
+
+- Issue #5391: mmap now deals exclusively with bytes.
+
+- Issue #5463: In struct module, remove deprecated overflow wrapping
+ when packing an integer: struct.pack('=L', -1) now raises
+ struct.error instead of returning b'\xff\xff\xff\xff'. The
+ _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
+ have been removed from the struct module.
+
+
+What's New in Python 3.1 alpha 1
+================================
+
+*Release date: 2009-03-07*
+
+Core and Builtins
+-----------------
+
+- The io module has been reimplemented in C for speed.
+
+- Give dict views an informative __repr__.
+
+- Issue #5247: Improve error message when unknown format codes are
+ used when using str.format() with str, int, and float arguments.
+
+- Issue #5249: time.strftime returned malformed string when format string
+ contained non ascii character on windows.
+
+- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
+ source has already been decoded into str.
+
+- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
+ rotating the object pointer by 4 bits to the right.
+
+- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
+ it now forces its argument to double before testing for infinity.
+
+- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
+ returns a non-number type.
+
+- Issue #5182: Removed memoryview.__str__.
+
+- Issue #1717: Removed builtin cmp() function, dropped tp_compare
+ slot, the C API functions PyObject_Compare and PyUnicode_Compare and
+ the type definition cmpfunc. The tp_compare slot has been renamed
+ to tp_reserved, and is reserved for future usage.
+
+- Issue #1242657: the __len__() and __length_hint__() calls in several tools
+ were suppressing all exceptions. These include list() and bytearray().
+
+- Issue #4707: round(x, n) now returns an integer if x is an integer.
+ Previously it returned a float.
+
+- Issue #4753: By enabling a configure option named '--with-computed-gotos'
+ on compilers that support it (notably: gcc, SunPro, icc), the bytecode
+ evaluation loop is compiled with a new dispatch mechanism which gives
+ speedups of up to 20%, depending on the system, on various benchmarks.
+
+- Issue #4874: Most builtin decoders now reject unicode input.
+
+- Issue #4842: Don't allow trailing 'L' when constructing an integer
+ from a string.
+
+- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
+
+- Issue #4838: When a module is deallocated, free the memory backing the
+ optional module state data.
+
+- Issue #4910: Rename nb_long slot to nb_reserved, and change its
+ type to ``(void *)``.
+
+- Issue #4935: The overflow checking code in the expandtabs() method common
+ to str, bytes and bytearray could be optimized away by the compiler, letting
+ the interpreter segfault instead of raising an error.
+
+- Issue #3720: Fix a crash when an iterator modifies its class and removes its
+ __next__ method.
+
+- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
+ function no longer attempt to call the __long__ slot to convert an object
+ to an integer. Only the __int__ and __trunc__ slots are examined.
+
+- Issue #4893: Use NT threading on CE.
+
+- Issue #4915: Port sysmodule to Windows CE.
+
+- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
+ common cases are optimized thanks to a dedicated fast path and a moderate
+ amount of loop unrolling.
+
+- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
+ collecting the oldest generation) so that allocating lots of objects without
+ destroying them does not show quadratic performance. Based on a proposal by
+ Martin von Löwis at
+ http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
+
+- Issue #4604: Some objects of the I/O library could still be used after
+ having been closed (for instance, a read() call could return some
+ previously buffered data). Patch by Dmitry Vasiliev.
+
+- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
+ flag to work properly. Furthermore, when specifying -u, the text stdout
+ and stderr streams have line-by-line buffering enabled (the default being
+ to buffer arbitrary chunks of data).
+
+- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
+ instead of ints (reducing its size from 4 to 8 times thereby reducing
+ Python's overall memory).
+
+- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
+ an existing .py counterpart, override the co_filename attributes of all
+ code objects if the original filename is obsolete (which can happen if the
+ file has been renamed, moved, or if it is accessed through different paths).
+ Patch by Ziga Seilnacht and Jean-Paul Calderone.
+
+- Issue #4580: Fix slicing of memoryviews when the item size is greater than
+ one byte. Also fixes the meaning of len() so that it returns the number of
+ items, rather than the size in bytes.
+
+- Issue #4075: Use OutputDebugStringW in Py_FatalError.
+
+- Issue #4747: When the terminal does not use utf-8, executing a script with
+ non-ascii characters in its name could fail with a "SyntaxError: None" error.
+
+- Issue #4797: IOError.filename was not set when ``_fileio.FileIO`` failed
+ to open file with a bytes filename on Windows.
+
+- Issue #3680: Reference cycles created through a dict, set or deque iterator
+ did not get collected.
+
+- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
+ where the tp_hash and tp_dict slots are both NULL.
+
+- Issue #4759: None is now allowed as the first argument of
+ bytearray.translate(). It was always allowed for bytes.translate().
+
+- Added test case to ensure attempts to read from a file opened for writing
+ fail.
+
+- Issue #3106: Speedup some comparisons (str/str and int/int).
+
+- Issue #2183: Simplify and optimize bytecode for list, dict and set
+ comprehensions. Original patch for list comprehensions by Neal Norwitz.
+
+- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
+ print elapsed times, not only when some objects are uncollectable /
+ unreachable. Original patch by Neil Schemenauer.
+
+- Issue #3439: Add a bit_length method to int.
+
+- Issue #2173: When getting device encoding, check that return value of
+ nl_langinfo is not the empty string. This was causing silent build
+ failures on OS X.
+
+- Issue #4597: Fixed several opcodes that weren't always propagating
+ exceptions.
+
+- Issue #4589: Fixed exception handling when the __exit__ function of a
+ context manager returns a value that cannot be converted to a bool.
+
+- Issue #4445: Replace "sizeof(PyBytesObject)" with
+ "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
+ bytes instances. On a typical machine this saves 3 bytes of memory
+ (on average) per allocation of a bytes instance.
+
+- Issue #4533: File read operation was dreadfully slow due to a slowly
+ growing read buffer. Fixed by using the same growth rate algorithm as
+ Python 2.x.
+
+- Issue #4509: Various issues surrounding resize of bytearray objects to
+ which there are buffer exports (e.g. memoryview instances).
+
+- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
+ method on file objects with closefd=False. The file descriptor is still
+ kept open but the file object behaves like a closed file. The ``FileIO``
+ object also got a new readonly attribute ``closefd``.
+
+- Issue #4569: Interpreter crash when mutating a memoryview with an item size
+ larger than 1.
+
+- Issue #4748: Lambda generators no longer return a value.
+
+- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
+
+- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
+ PyUnicode_DecodeUTF8() once, remember the result and output it in a second
+ step. This avoids problems with counting UTF-8 bytes that ignores the effect
+ of using the replace error handler in PyUnicode_DecodeUTF8().
+
+Library
+-------
+
+- Issue #7071: byte-compilation in Distutils is now done with respect to
+ sys.dont_write_bytecode.
+
+- Issue #7066: archive_util.make_archive now restores the cwd if an error is
+ raised. Initial patch by Ezio Melotti.
+
+- Issue #6516: Added owner/group support when creating tar archives in
+ Distutils.
+
+- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
+
+- Issue #6163: Fixed HP-UX runtime library dir options in
+ distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
+ Michael Haubenwallner.
+
+- Issue #6693: New functions in site.py to get user/global site packages paths.
+
+- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
+ opening an empty or very small file.
+
+- Issue #6545: Removed assert statements in distutils.Extension, so the
+ behavior is similar when used with -O.
+
+- unittest has been split up into a package. All old names should still work.
+
+- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
+ uses the same refactored function to get gcc/ld/dllwrap versions numbers.
+ It's `distutils.util.get_compiler_versions`. Added deprecation warnings
+ for the obsolete get_versions() functions.
+
+- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
+
+- Issue #6314: logging: Extra checks on the "level" argument in more places.
+
+- Issue #2622: Fixed an ImportError when importing email.message from a
+ standalone application built with py2exe or py2app.
+
+- Issue #6455: Fixed test_build_ext under win32.
+
+- Issue #6377: Enabled the compiler option, and deprecate its usage as an
+ attribute.
+
+- Issue #6413: Fixed the log level in distutils.dist for announce.
+
+- Issue #6403: Fixed package path usage in build_ext.
+
+- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
+ unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
+ descriptor errors
+
+- Issue #6365: Distutils build_ext inplace mode was copying the compiled
+ extension in a subdirectory if the extension name had dots.
+
+- Issue #6164: Added an AIX specific linker argument in Distutils
+ unixcompiler. Original patch by Sridhar Ratnakumar.
+
+- Issue #6286: Now Distutils upload command is based on urllib2 instead of
+ httplib, allowing the usage of http_proxy.
+
+- Issue #6287: Added the license field in Distutils documentation.
+
+- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
+
+- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
+ in Makefiles. This prevents compile errors when using syntax like:
+ `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
+
+- Issue #6131: test_modulefinder leaked when run after test_distutils.
+ Patch by Hirokazu Yamamoto.
+
+- Issue #6048: Now Distutils uses the tarfile module in archive_util.
+
+- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
+ and tests on pywin32 by Tim Golden.
+
+- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
+
+- Issue #6046: Fixed the library extension when distutils build_ext is used
+ inplace. Initial patch by Roumen Petrov.
+
+- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
+ subcommand.
+
+- Issue #6022: a test file was created in the current working directory by
+ test_get_outputs in Distutils.
+
+- Issue #5977: distutils build_ext.get_outputs was not taking into account the
+ inplace option. Initial patch by kxroberto.
+
+- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
+ for old-style extensions.
+
+- Issue #5976: Fixed Distutils test_check_environ.
+
+- Issue #5941: Distutils build_clib command was not working anymore because
+ of an incomplete costumization of the archiver command. Added ARFLAGS in the
+ Makefile besides AR and make Distutils use it. Original patch by David
+ Cournapeau.
+
+- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
+
+- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
+ anymore.
+
+- Issue #5810: Fixed Distutils test_build_scripts so it uses
+ sysconfig.get_config_vars.
+
+- Issue #4951: Fixed failure in test_httpservers.
+
+- Issue #5795: Fixed test_distutils failure on Debian ppc.
+
+- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
+
+- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
+ a value in SafeConfigParser.
+
+- Issue #5732: added a new command in Distutils: check.
+
+- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
+ platforms. Initial patch by Paul Moore.
+
+- Issue #5095: Added bdist_msi to the list of bdist supported formats.
+ Initial fix by Steven Bethard.
+
+- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
+ Initial fix by Wayne Davison.
+
+- Issue #5694: removed spurious test output in Distutils (test_clean).
+
+- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
+
+- Issue #1665206 (partially): Move imports in cgitb to the top of the module
+ instead of performing them in functions. Helps prevent import deadlocking in
+ threads.
+
+- Issue #2522: locale.format now checks its first argument to ensure it has
+ been passed only one pattern, avoiding mysterious errors where it appeared
+ that it was failing to do localization.
+
+- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
+ Brandl.
+
+- Issue #1222: locale.format() bug when the thousands separator is a space
+ character.
+
+- Issue #5472: Fixed distutils.test_util tear down. Original patch by
+ Tim Golden.
+
+- collections.deque() objects now have a read-only attribute called maxlen.
+
+- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
+ it is has been populated and properly configured in order to prevent
+ window flashing.
+
+- Issue #4792: Prevent a segfault in _tkinter by using the
+ guaranteed to be safe interp argument given to the PythonCmd in place of
+ the Tcl interpreter taken from a PythonCmd_ClientData.
+
+- Issue #5193: Guarantee that tkinter.Text.search returns a string.
+
+- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
+ Original patch by Akira Kitada.
+
+- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
+
+- Issue #5385: Fixed mmap crash after resize failure on windows.
+
+- Issue #5179: Fixed subprocess handle leak on failure on windows.
+
+- PEP 372: Added collections.OrderedDict().
+
+- The _asdict() for method for namedtuples now returns an OrderedDict().
+
+- configparser now defaults to using an ordered dictionary.
+
+- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
+ import guess_extension`` was used.
+
+- Issue #1733986: Fixed mmap crash in accessing elements of second map object
+ with same tagname but larger size than first map. (Windows)
+
+- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
+ overrun.
+
+- Issue #1533164: Installed but not listed ``*.pyo`` was breaking Distutils
+ bdist_rpm command.
+
+- Issue #5378: added --quiet option to Distutils bdist_rpm command.
+
+- Issue #5052: make Distutils compatible with 2.3 again.
+
+- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
+ in Distutils tests.
+
+- Issue #5287: Add exception handling around findCaller() call to help out
+ IronPython.
+
+- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
+ The file was resized to wrong size.
+
+- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
+
+- Issue #2279: distutils.sdist.add_defaults now add files
+ from the package_data and the data_files metadata.
+
+- Issue #5257: refactored all tests in distutils, so they use
+ support.TempdirManager, to avoid writing in the tests directory.
+
+- Issue #4524: distutils build_script command failed with --with-suffix=3.
+ Initial patch by Amaury Forgeot d'Arc.
+
+- Issue #2461: added tests for distutils.util
+
+- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
+ which inherited from numbers.py which did not have __slots__ defined. The
+ numbers hierarchy now has its own __slots__ declarations.
+
+- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
+ encoding.
+
+- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
+ function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
+
+- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
+ under NT and OS2. Patch by Philip Jenvey.
+
+- Issue #5128: Make compileall properly inspect bytecode to determine if needs
+ to be recreated. This avoids a timing hole thanks to the old reliance on the
+ ctime of the files involved.
+
+- Issue #5122: Synchronize tk load failure check to prevent a potential
+ deadlock.
+
+- Issue #1818: collections.namedtuple() now supports a keyword argument
+ 'rename' which lets invalid fieldnames be automatically converted to
+ positional names in the form, _1, _2, ...
+
+- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
+
+- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
+ public documented method ``ZipImporter.get_filename()``.
+
+- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
+ the execution of packages by looking for and executing a ``__main__``
+ submodule when a package name is supplied. Initial patch by Andi
+ Vajda.
+
+- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
+ not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
+ Tkapp_Call when calling from a thread different than the one that created
+ the Tcl interpreter. Patch by Robert Hancock.
+
+- Issue #4285: Change sys.version_info to be a named tuple. Patch by
+ Ross Light.
+
+- Issue #1520877: Now distutils.sysconfig reads $AR from the
+ environment/Makefile. Patch by Douglas Greiman.
+
+- Issue #1276768: The verbose option was not used in the code of
+ distutils.file_util and distutils.dir_util.
+
+- Issue #5132: Fixed trouble building extensions under Solaris with
+ --enabled-shared activated. Initial patch by Dave Peterson.
+
+- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
+
+- The shelve module now defaults to pickle protocol 3.
+
+- Fix a bug in the trace module where a bytes object from co_lnotab had its
+ items being passed through ord().
+
+- Issue #2047: shutil.move() could believe that its destination path was
+ inside its source path if it began with the same letters (e.g. "src" vs.
+ "src.new").
+
+- Added the ttk module. See issue #2983: Ttk support for Tkinter.
+
+- Removed isSequenceType(), isMappingType, and isNumberType() from the
+ operator module; use the abstract base classes instead. Also removed
+ the repeat() function; use mul() instead.
+
+- Issue #5021: doctest.testfile() did not create __name__ and
+ collections.namedtuple() relied on __name__ being defined.
+
+- Backport importlib from Python 3.1. Only the import_module() function has
+ been backported to help facilitate transitions from 2.7 to 3.1.
+
+- Issue #1885: distutils. When running sdist with --formats=tar,gztar
+ the tar file was overriden by the gztar one.
+
+- Issue #4863: distutils.mwerkscompiler has been removed.
+
+- Added a new itertools functions: combinations_with_replacement()
+ and compress().
+
+- Issue #5032: added a step argument to itertools.count() and
+ allowed non-integer arguments.
+
+- Fix and properly document the multiprocessing module's logging
+ support, expose the internal levels and provide proper usage
+ examples.
+
+- Issue #1672332: fix unpickling of subnormal floats, which was
+ producing a ValueError on some platforms.
+
+- Issue #3881: Help Tcl to load even when started through the
+ unreadable local symlink to "Program Files" on Vista.
+
+- Issue #4710: Extract directories properly in the zipfile module;
+ allow adding directories to a zipfile.
+
+- Issue #3807: _multiprocessing build fails when configure is passed
+ --without-threads argument. When this occurs, _multiprocessing will
+ be disabled, and not compiled.
+
+- Issue #5008: When a file is opened in append mode with the new IO library,
+ do an explicit seek to the end of file (so that e.g. tell() returns the
+ file size rather than 0). This is consistent with the behaviour of the
+ traditional 2.x file object.
+
+- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
+ parameter was set.
+
+- Issue #4842: Always append a trailing 'L' when pickling longs using
+ pickle protocol 0. When reading, the 'L' is optional.
+
+- Add the importlib package.
+
+- Issue #4301: Patch the logging module to add processName support, remove
+ _check_logger_class from multiprocessing.
+
+- Issue #3325: Remove python2.x try: except: imports for old cPickle from
+ multiprocessing.
+
+- Issue #4959: inspect.formatargspec now works for keyword only arguments
+ without defaults.
+
+- Issue #3321: ``_multiprocessing.Connection()`` doesn't check handle; added checks
+ for Unix machines for negative handles and large int handles. Without this check
+ it is possible to segfault the interpreter.
+
+- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
+ in sharedctypes.py.
+
+- Issue #1225107: inspect.isclass() returned True for instances with a custom
+ __getattr__.
+
+- Issue #3826 and #4791: The socket module now closes the underlying socket
+ appropriately when it is being used via socket.makefile() objects
+ rather than delaying the close by waiting for garbage collection to do it.
+
+- Issue #1696199: Add collections.Counter() for rapid and convenient
+ counting.
+
+- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
+
+- Issue #4867: Fixed a crash in ctypes when passing a string to a
+ function without defining argtypes.
+
+- Issue #4272: Add an optional argument to the GzipFile constructor to override
+ the timestamp in the gzip stream. The default value remains the current time.
+ The information can be used by e.g. gunzip when decompressing. Patch by
+ Jacques Frechet.
+
+- Restore Python 2.3 compatibility for decimal.py.
+
+- Issue #3638: Remove functions from _tkinter module level that depend on
+ TkappObject to work with multiple threads.
+
+- Issue #4718: Adapt the wsgiref package so that it actually works with
+ Python 3.x, in accordance with the `official amendments of the spec
+ <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
+
+- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
+ to the decimal module.
+
+- Fractions.from_float() no longer loses precision for integers too big to
+ cast as floats.
+
+- Issue #4812: add missing underscore prefix to some internal-use-only
+ constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
+
+- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
+ did unnecessary work in the common case where no key function was specified.
+
+- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
+ the function is not a generator.
+
+- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
+ no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
+
+- Issue #4646: distutils was choking on empty options arg in the setup
+ function. Original patch by Thomas Heller.
+
+- Issue #3767: Convert Tk object to string in tkColorChooser.
+
+- Issue #3248: Allow placing ScrolledText in a PanedWindow.
+
+- Issue #4444: Allow assertRaises() to be used as a context handler, so that
+ the code under test can be written inline if more practical.
+
+- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
+ works as expected in the interactive environment.
+
+- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
+ Gabriel Genellina.
+
+- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
+ boundary.
+
+- Issue #4223: inspect.getsource() will now correctly display source code
+ for packages loaded via zipimport (or any other conformant PEP 302
+ loader). Original patch by Alexander Belopolsky.
+
+- Issue #4201: pdb can now access and display source code loaded via
+ zipimport (or any other conformant PEP 302 loader). Original patch by
+ Alexander Belopolsky.
+
+- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
+ 302 conformant loader) will now work correctly in most cases (they
+ are still subject to the constraints that exist for all code running
+ from inside a module loaded via a PEP 302 loader and attempting to
+ perform IO operations based on __file__). Original patch by
+ Alexander Belopolsky.
+
+- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
+ allows backporting to maintenance branches. Original patch by
+ Alexander Belopolsky.
+
+- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
+ a non-ASCII letter.
+
+- Issue #4616: TarFile.utime(): Restore directory times on Windows.
+
+- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
+ codec cannot be found. This is for compatibility with the builtin behavior.
+
+- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
+ give correct results in the case where one argument is a quiet NaN
+ and the other is a finite number that requires rounding.
+
+- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
+ libs.
+
+- Added the subprocess.check_call_output() convenience function to get output
+ from a subprocess on success or raise an exception on error.
+
+- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
+ support unusual filenames (such as those containing semi-colons) in
+ Content-Disposition headers.
+
+- Issue #4384: Added logging integration with warnings module using
+ captureWarnings(). This change includes a NullHandler which does nothing;
+ it will be of use to library developers who want to avoid the "No handlers
+ could be found for logger XXX" message which can appear if the library user
+ doesn't configure logging.
+
+- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
+ exception.
+
+- Issue #4529: fix the parser module's validation of try-except-finally
+ statements.
+
+- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
+ not a malformed option.
+
+- Added the subprocess.check_output() convenience function to get output
+ from a subprocess on success or raise an exception on error.
+
+- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
+ the corresponding tests now pass.
+
+- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
+ it was calling the wrong open() function.
+
+- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
+ support unusual filenames (such as those containing semi-colons) in
+ Content-Disposition headers.
+
+- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
+ biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
+
+- Issue #5104: The socket module now raises OverflowError when 16-bit port and
+ protocol numbers are supplied outside the allowed 0-65536 range on bind()
+ and getservbyport().
+
+- Windows locale mapping updated to Vista.
+
+Tools/Demos
+-----------
+
+- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
+ and make it 2.6-compatible.
+
+- Ttk demos added in Demo/tkinter/ttk/
+
+- Issue #4677: add two list comprehension tests to pybench.
+
+
+Build
+-----
+
+- Issue #6094: Build correctly with Subversion 1.7.
+
+- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
+
+- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
+ linker, rather than always exit successfully. Patch by Floris Bruynooghe.
+
+- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
+ the order that backends for the dbm extension are checked.
+
+- Link the shared python library with $(MODLIBS).
+
+- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
+
+- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
+
+- Issue #4895: Use _strdup on Windows CE.
+
+- Issue #4472: "configure --enable-shared" now works on OSX
+
+- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
+
+- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
+
+- Issue #4289: Remove Cancel button from AdvancedDlg.
+
+- Issue #1656675: Register a drop handler for .py* files on Windows.
+
+- Issue #4120: Exclude manifest from extension modules in VS2008.
+
+- Issue #4091: Install pythonxy.dll in system32 again.
+
+- Issue #4018: Disable "for me" installations on Vista.
+
+- Issue #3758: Add ``patchcheck`` build target to .PHONY.
+
+- Issue #4204: Fixed module build errors on FreeBSD 4.
+
+
+C-API
+-----
+
+- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
+ NUL: Bogus TypeError detail string.
+
+- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
+ for negative arguments. Previously, it raised TypeError.
+
+- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
+
+- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
+ the GIL is released, or owned by another thread.
+
+- Issue #4122: On Windows, fix a compilation error when using the
+ Py_UNICODE_ISSPACE macro in an extension module.
+
+
+Extension Modules
+-----------------
+
+- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
+ supporting objects as input no matter how it was compiled (built in
+ implementations or external openssl library).
+
+- Issue #4397: Fix occasional test_socket failure on OS X.
+
+- Issue #4279: Fix build of parsermodule under Cygwin.
+
+- Issue #4751: hashlib now releases the GIL when hashing large buffers
+ (with a hardwired threshold of 2048 bytes), allowing better parallelization
+ on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
+
+- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
+
+- Issue #4738: Each zlib object now has a separate lock, allowing to compress
+ or decompress several streams at once on multi-CPU systems. Also, the GIL
+ is now released when computing the CRC of a large buffer. Patch by ebfe.
+
+- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
+
+- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
+
+- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
+ OpenBSD.
+
+- Issue #4583: array.array would not always prohibit resizing when a buffer
+ has been exported, resulting in an interpreter crash when accessing the
+ buffer.
+
+
+- Issue #5228: Make functools.partial objects can now be pickled.
+
+Tests
+-----
+
+- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
+ regression tests in parallel, shortening the total runtime.
+
+- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
+ Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
+ the same behaviour as test_ttkguionly (and now also test_tk) which is to
+ skip the tests if DISPLAY is defined but can't be used.
+
+- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
+ that should cause a test to be skipped are now done using import_module
+ from test support, which does the conversion.
+
+- Issue #5083: New 'gui' resource for regrtest.
+
+
+Docs
+----
+
+
What's New in Python 3.0 final
==============================
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -4221,5401 +4221,4 @@
- Issue #11818: Fix tempfile examples for Python 3.
-What's New in Python 3.2?
-=========================
-
-*Release date: 20-Feb-2011*
-
-Core and Builtins
------------------
-
-- Issue #11249: Fix potential crashes when using the limited API.
-
-Build
------
-
-- Issue #11222: Fix non-framework shared library build on Mac OS X.
-
-- Issue #11184: Fix large-file support on AIX.
-
-- Issue #941346: Fix broken shared library build on AIX.
-
-Documentation
--------------
-
-- Issue #10709: Add updated AIX notes in Misc/README.AIX.
-
-
-What's New in Python 3.2 Release Candidate 3?
-=============================================
-
-*Release date: 13-Feb-2011*
-
-Core and Builtins
------------------
-
-- Issue #11134: Add missing fields to typeslots.h.
-
-- Issue #11135: Remove redundant doc field from PyType_Spec.
-
-- Issue #11067: Add PyType_GetFlags, to support PyUnicode_Check in the limited
- ABI.
-
-- Issue #11118: Fix bogus export of None in python3.dll.
-
-Library
--------
-
-- Issue #11116: any error during addition of a message to a mailbox now causes a
- rollback, instead of leaving the mailbox partially modified.
-
-- Issue #11132: Fix passing of "optimize" parameter when recursing in
- compileall.compile_dir().
-
-- Issue #11110: Fix a potential decref of a NULL in sqlite3.
-
-- Issue #8275: Fix passing of callback arguments with ctypes under Win64. Patch
- by Stan Mihai.
-
-Build
------
-
-- Issue #11079: The /Applications/Python x.x folder created by the Mac OS X
- installers now includes a link to the installed documentation and no longer
- includes an Extras directory. The Tools directory is now installed in the
- framework under share/doc.
-
-- Issue #11121: Fix building with --enable-shared.
-
-Tests
------
-
-- Issue #10971: test_zipimport_support is once again compatible with the refleak
- hunter feature of test.regrtest.
-
-
-What's New in Python 3.2 Release Candidate 2?
-=============================================
-
-*Release date: 30-Jan-2011*
-
-Core and Builtins
------------------
-
-- Issue #10451: memoryview objects could allow to mutate a readable buffer.
- Initial patch by Ross Lagerwall.
-
-Library
--------
-
-- Issue #9124: mailbox now accepts binary input and reads and writes mailbox
- files in binary mode, using the email package's binary support to parse
- arbitrary email messages. StringIO and text file input is deprecated,
- and string input fails early if non-ASCII characters are used, where
- previously it would fail when the email was processed in a later step.
-
-- Issue #10845: Mitigate the incompatibility between the multiprocessing
- module on Windows and the use of package, zipfile or directory execution
- by special casing main modules that actually *are* called __main__.py.
-
-- Issue #11045: Protect logging call against None argument.
-
-- Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save
- commands.
-
-- Issue #11053: Fix IDLE "Syntax Error" windows to behave as in 2.x,
- preventing a confusing hung appearance on OS X with the windows
- obscured.
-
-- Issue #10940: Workaround an IDLE hang on Mac OS X 10.6 when using the
- menu accelerators for Open Module, Go to Line, and New Indent Width.
- The accelerators still work but no longer appear in the menu items.
-
-- Issue #10989: Fix a crash on SSLContext.load_verify_locations(None, True).
-
-- Issue #11020: Command-line pyclbr was broken because of missing 2-to-3
- conversion.
-
-- Issue #11019: Fixed BytesGenerator so that it correctly handles a Message
- with a None body.
-
-- Issue #11014: Make 'filter' argument in tarfile.Tarfile.add() into a
- keyword-only argument. The preceding positional argument was deprecated,
- so it made no sense to add filter as a positional argument.
-
-- Issue #11004: Repaired edge case in deque.count().
-
-- Issue #10974: IDLE no longer crashes if its recent files list includes files
- with non-ASCII characters in their path names.
-
-- Have hashlib.algorithms_available and hashlib.algorithms_guaranteed both
- return sets instead of one returning a tuple and the other a frozenset.
-
-- Issue #10987: Fix the recursion limit handling in the _pickle module.
-
-- Issue #10983: Fix several bugs making tunnel requests in http.client.
-
-- Issue #10955: zipimport uses ASCII encoding instead of cp437 to decode
- filenames, at bootstrap, if the codec registry is not ready yet. It is still
- possible to have non-ASCII filenames using the Unicode flag (UTF-8 encoding)
- for all file entries in the ZIP file.
-
-- Issue #10949: Improved robustness of rotating file handlers.
-
-- Issue #10955: Fix a potential crash when trying to mmap() a file past its
- length. Initial patch by Ross Lagerwall.
-
-- Issue #10898: Allow compiling the posix module when the C library defines
- a symbol named FSTAT.
-
-- Issue #10980: the HTTP server now encodes headers with iso-8859-1 (latin1)
- encoding. This is the preferred encoding of PEP 3333 and the base encoding
- of HTTP 1.1.
-
-- To match the behaviour of HTTP server, the HTTP client library now also
- encodes headers with iso-8859-1 (latin1) encoding. It was already doing
- that for incoming headers which makes this behaviour now consistent in
- both incoming and outgoing direction.
-
-- Issue #9509: argparse now properly handles IOErrors raised by
- argparse.FileType.
-
-- Issue #10961: The new pydoc server now better handles exceptions raised
- during request handling.
-
-- Issue #10680: Fix mutually exclusive arguments for argument groups in
- argparse.
-
-Build
------
-
-- Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with
- the system-provided Python.
-
-
-What's New in Python 3.2 Release Candidate 1
-============================================
-
-*Release date: 16-Jan-2011*
-
-Core and Builtins
------------------
-
-- Issue #10889: range indexing and slicing now works correctly on ranges with
- a length that exceeds sys.maxsize.
-
-- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
- class.
-
-- Issue #8020: Avoid a crash where the small objects allocator would read
- non-Python managed memory while it is being modified by another thread. Patch
- by Matt Bandy.
-
-- Issue #10841: On Windows, set the binary mode on stdin, stdout, stderr and all
- io.FileIO objects (to not translate newlines, \r\n <=> \n). The Python parser
- translates newlines (\r\n => \n).
-
-- Remove buffer API from stable ABI for now, see #10181.
-
-- Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
- doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int
- (length bigger than 2^31-1 bytes).
-
-- Issue #9015, #9611: FileIO.readinto(), FileIO.write(), os.write() and
- stdprinter.write() clamp the length to INT_MAX on Windows.
-
-- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
- can now handle dates after 2038.
-
-- Issue #10780: PyErr_SetFromWindowsErrWithFilename() and
- PyErr_SetExcFromWindowsErrWithFilename() decode the filename from the
- filesystem encoding instead of UTF-8.
-
-- Issue #10779: PyErr_WarnExplicit() decodes the filename from the filesystem
- encoding instead of UTF-8.
-
-- Add sys.flags attribute for the new -q command-line option.
-
-- Issue #11506: Trying to assign to a bytes literal should result in a
- SyntaxError.
-
-Library
--------
-
-- Issue #10916: mmap should not segfault when a file is mapped using 0 as length
- and a non-zero offset, and an attempt to read past the end of file is made
- (IndexError is raised instead). Patch by Ross Lagerwall.
-
-- Issue #10154, #10090: change the normalization of UTF-8 to "UTF-8" instead
- of "UTF8" in the locale module as the latter is not supported MacOSX and OpenBSD.
-
-- Issue #10907: Warn OS X 10.6 IDLE users to use ActiveState Tcl/Tk 8.5, rather
- than the currently problematic Apple-supplied one, when running with the
- 64-/32-bit installer variant.
-
-- Issue #4953: cgi.FieldStorage and cgi.parse() parse the request as bytes, not
- as unicode, and accept binary files. Add encoding and errors attributes to
- cgi.FieldStorage. Patch written by Pierre Quentel (with many inputs by Glenn
- Linderman).
-
-- Add encoding and errors arguments to urllib.parse_qs() and urllib.parse_qsl().
-
-- Issue #10899: No function type annotations in the standard library. Removed
- function type annotations from _pyio.py.
-
-- Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'.
-
-- Issue #10872: The repr() of TextIOWrapper objects now includes the mode
- if available.
-
-- Issue #10869: Fixed bug where ast.increment_lineno modified the root node
- twice.
-
-- Issue #5871: email.header.Header.encode now raises an error if any
- continuation line in the formatted value has no leading white space and looks
- like a header. Since Generator uses Header to format all headers, this check
- is made for all headers in any serialized message at serialization time. This
- provides protection against header injection attacks.
-
-- Issue #10859: Make ``contextlib.GeneratorContextManager`` officially
- private by renaming it to ``_GeneratorContextManager``.
-
-- Issue #10042: Fixed the total_ordering decorator to handle cross-type
- comparisons that could lead to infinite recursion.
-
-- Issue #10686: the email package now :rfc:`2047`\ -encodes headers with
- non-ASCII bytes (parsed by a BytesParser) when doing conversion to 7bit-clean
- presentation, instead of replacing them with ?s.
-
-- email.header.Header was incorrectly encoding folding whitespace when
- rfc2047-encoding header values with embedded newlines, leaving them without
- folding whitespace. It now uses the continuation_ws, as it does for
- continuation lines that it creates itself.
-
-- Issue #1777412, #10827: Changed the rules for 2-digit years. The
- time.asctime(), time.ctime() and time.strftime() functions will now format
- any year when ``time.accept2dyear`` is False and will accept years >= 1000
- otherwise. ``time.mktime`` and ``time.strftime`` now accept full range
- supported by the OS. With Visual Studio or on Solaris, the year is limited to
- the range [1; 9999]. Conversion of 2-digit years to 4-digit is deprecated.
-
-- Issue #7858: Raise an error properly when os.utime() fails under Windows
- on an existing file.
-
-- Issue #3839: wsgiref should not override a Content-Length header set by
- the application. Initial patch by Clovis Fabricio.
-
-- Issue #10492: bdb.Bdb.run() only traces the execution of the code, not the
- compilation (if the input is a string).
-
-- Issue #7995: When calling accept() on a socket with a timeout, the returned
- socket is now always blocking, regardless of the operating system.
-
-- Issue #10756: atexit normalizes the exception before displaying it. Patch by
- Andreas Stührk.
-
-- Issue #10790: email.header.Header.append's charset logic now works correctly
- for charsets whose output codec is different from its input codec.
-
-- Issue #10819: SocketIO.name property returns -1 when its closed, instead of
- raising a ValueError, to fix repr().
-
-- Issue #8650: zlib.compress() and zlib.decompress() raise an OverflowError if
- the input buffer length doesn't fit into an unsigned int (length bigger than
- 2^32-1 bytes).
-
-- Issue #6643: Reinitialize locks held within the threading module after fork to
- avoid a potential rare deadlock or crash on some platforms.
-
-- Issue #10806, issue #9905: Fix subprocess pipes when some of the standard file
- descriptors (0, 1, 2) are closed in the parent process. Initial patch by Ross
- Lagerwall.
-
-- `unittest.TestCase` can be instantiated without a method name; for simpler
- exploration from the interactive interpreter.
-
-- Issue #10798: Reject supporting concurrent.futures if the system has too
- few POSIX semaphores.
-
-- Issue #10807: Remove base64, bz2, hex, quopri, rot13, uu and zlib codecs from
- the codec aliases. They are still accessible via codecs.lookup().
-
-- Issue #10801: In zipfile, support different encodings for the header and the
- filenames.
-
-- Issue #6285: IDLE no longer crashes on missing help file; patch by Scott
- David Daniels.
-
-- Fix collections.OrderedDict.setdefault() so that it works in subclasses that
- define __missing__().
-
-- Issue #10786: unittest.TextTestRunner default stream no longer bound at import
- time. `sys.stderr` now looked up at instantiation time. Fix contributed by
- Mark Roddy.
-
-- Issue #10753: Characters ';', '=' and ',' in the PATH_INFO environment variable
- won't be quoted when the URI is constructed by the wsgiref.util's request_uri
- method. According to RFC 3986, these characters can be a part of params in
- PATH component of URI and need not be quoted.
-
-- Issue #10738: Fix webbrowser.Opera.raise_opts.
-
-- Issue #9824: SimpleCookie now encodes , and ; in values to cater to how
- browsers actually parse cookies.
-
-- Issue #9333: os.symlink now available regardless of user privileges. The
- function now raises OSError on Windows >=6.0 when the user is unable to create
- symbolic links. XP and 2003 still raise NotImplementedError.
-
-- Issue #10783: struct.pack() no longer implicitly encodes unicode to UTF-8.
-
-- Issue #10730: Add SVG mime types to mimetypes module.
-
-- Issue #10768: Make the Tkinter ScrolledText widget work again.
-
-- Issue #10777: Fix "dictionary changed size during iteration" bug in
- ElementTree register_namespace().
-
-- Issue #10626: test_logging now preserves logger disabled states.
-
-- Issue #10774: test_logging now removes temp files created during tests.
-
-- Issue #5258/#10642: if site.py encounters a .pth file that generates an error,
- it now prints the filename, line number, and traceback to stderr and skips
- the rest of that individual file, instead of stopping processing entirely.
-
-- Issue #10763: subprocess.communicate() closes stdout and stderr if both are
- pipes (bug specific to Windows).
-
-- Issue #1693546: fix email.message RFC 2231 parameter encoding to be in better
- compliance (no "s around encoded values).
-
-- Improved the diff message in the unittest module's assertCountEqual().
-
-- Issue #1155362: email.utils.parsedate_tz now handles a missing space before
- the '-' of a timezone field as well as before a '+'.
-
-- Issue #4871: The zipfile module now gives a more useful error message if
- an attempt is made to use a string to specify the archive password.
-
-- Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only.
-
-- Deprecated assertDictContainsSubset() in the unittest module.
-
-C-API
------
-
-- PyObject_CallMethod now passes along any underlying AttributeError from
- PyObject_GetAttr, instead of replacing it with something less informative
-
-- Issue #10913: Deprecate misleading functions PyEval_AcquireLock() and
- PyEval_ReleaseLock(). The thread-state aware APIs should be used instead.
-
-- Issue #10333: Remove ancient GC API, which has been deprecated since Python
- 2.2.
-
-Build
------
-
-- Issue #10843: Update third-party library versions used in OS X 32-bit
- installer builds: bzip2 1.0.6, readline 6.1.2, SQLite 3.7.4 (with FTS3/FTS4
- and RTREE enabled), and ncursesw 5.5 (wide-char support enabled).
-
-- Issue #10820: Fix OS X framework installs to support version-specific
- scripts (#10679).
-
-- Issue #7716: Under Solaris, don't assume existence of /usr/xpg4/bin/grep in
- the configure script but use $GREP instead. Patch by Fabian Groffen.
-
-- Issue #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD
- and DragonFly BSD. Patch by Nicolas Joly.
-
-- Issue #10679: The "idle", "pydoc" and "2to3" scripts are now installed with
- a version-specific suffix on "make altinstall".
-
-- Issue #10655: Fix the build on PowerPC on Linux with GCC when building with
- timestamp profiling (--with-tsc): the preprocessor test for the PowerPC
- support now looks for "__powerpc__" as well as "__ppc__": the latter seems to
- only be present on OS X; the former is the correct one for Linux with GCC.
-
-- Issue #1099: Fix the build on MacOSX when building a framework with pydebug
- using GCC 4.0.
-
-Tools/Demos
------------
-
-- Issue #10843: Install the Tools directory on OS X in the applications Extras
- (/Applications/Python 3.n/Extras/) where the Demo directory had previous been
- installed.
-
-- Issue #7962: The Demo directory is gone. Most of the old and unmaintained
- demos have been removed, others integrated in documentation or a new
- Tools/demo subdirectory.
-
-- Issue #10502: Addition of the unittestgui tool. Originally by Steve Purcell.
- Updated for test discovery by Mark Roddy and Python 3 compatibility by Brian
- Curtin.
-
-Tests
------
-
-- Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing.
-
-- Fix test_startfile to wait for child process to terminate before finishing.
-
-- Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch
- by Ross Lagerwall.
-
-- Make the --coverage flag work for test.regrtest.
-
-- Issue #1677694: Refactor and improve test_timeout. Original patch by
- Björn Lindqvist.
-
-- Issue #5485: Add tests for the UseForeignDTD method of expat parser objects.
- Patch by Jean-Paul Calderone and Sandro Tosi.
-
-- Issue #6293: Have regrtest.py echo back sys.flags. This is done by default in
- whole runs and enabled selectively using ``--header`` when running an explicit
- list of tests. Original patch by Collin Winter.
-
-
-What's New in Python 3.2 Beta 2?
-================================
-
-*Release date: 19-Dec-2010*
-
-Core and Builtins
------------------
-
-- Issue #8844: Regular and recursive lock acquisitions can now be interrupted
- by signals on platforms using pthreads. Patch by Reid Kleckner.
-
-- Issue #4236: PyModule_Create2 now checks the import machinery directly
- rather than the Py_IsInitialized flag, avoiding a Fatal Python
- error in certain circumstances when an import is done in __del__.
-
-- Issue #5587: add a repr to dict_proxy objects. Patch by David Stanek and
- Daniel Urban.
-
-Library
--------
-
-- Issue #3243: Support iterable bodies in httplib. Patch Contributions by
- Xuanji Li and Chris AtLee.
-
-- Issue #10611: SystemExit exception will no longer kill a unittest run.
-
-- Issue #9857: It is now possible to skip a test in a setUp, tearDown or clean
- up function.
-
-- Issue #10573: use actual/expected consistently in unittest methods.
- The order of the args of assertCountEqual is also changed.
-
-- Issue #9286: email.utils.parseaddr no longer concatenates blank-separated
- words in the local part of email addresses, thereby preserving the input.
-
-- Issue #6791: Limit header line length (to 65535 bytes) in http.client
- and http.server, to avoid denial of services from the other party.
-
-- Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle.
-
-- Issue #9907: Fix tab handling on OSX when using editline by calling
- rl_initialize first, then setting our custom defaults, then reading .editrc.
-
-- Issue #4188: Avoid creating dummy thread objects when logging operations
- from the threading module (with the internal verbose flag activated).
-
-- Issue #10711: Remove HTTP 0.9 support from http.client. The ``strict``
- parameter to HTTPConnection and friends is deprecated.
-
-- Issue #9721: Fix the behavior of urljoin when the relative url starts with a
- ';' character. Patch by Wes Chow.
-
-- Issue #10714: Limit length of incoming request in http.server to 65536 bytes
- for security reasons. Initial patch by Ross Lagerwall.
-
-- Issue #9558: Fix distutils.command.build_ext with VS 8.0.
-
-- Issue #10667: Fast path for collections.Counter().
-
-- Issue #10695: passing the port as a string value to telnetlib no longer
- causes debug mode to fail.
-
-- Issue #1078919: add_header now automatically RFC2231 encodes parameters
- that contain non-ascii values.
-
-- Issue #10188 (partial resolution): tempfile.TemporaryDirectory emits
- a warning on sys.stderr rather than throwing a misleading exception
- if cleanup fails due to nulling out of modules during shutdown.
- Also avoids an AttributeError when mkdtemp call fails and issues
- a ResourceWarning on implicit cleanup via __del__.
-
-- Issue #10107: Warn about unsaved files in IDLE on OSX.
-
-- Issue #7213: subprocess.Popen's default for close_fds has been changed.
- It is now True in most cases other than on Windows when input, output or
- error handles are provided.
-
-- Issue #6559: subprocess.Popen has a new pass_fds parameter (actually
- added in 3.2beta1) to allow specifying a specific list of file descriptors
- to keep open in the child process.
-
-- Issue #1731717: Fixed the problem where subprocess.wait() could cause an
- OSError exception when The OS had been told to ignore SIGCLD in our process
- or otherwise not wait for exiting child processes.
-
-Tests
------
-
-- Issue #775964: test_grp now skips YP/NIS entries instead of failing when
- encountering them.
-
-Tools/Demos
------------
-
-- Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and
- Cocoa AquaTk.
-
-- Issue #10710: ``Misc/setuid-prog.c`` is removed from the source tree.
-
-- Issue #10706: Remove outdated script runtests.sh. Either ``make test``
- or ``python -m test`` should be used instead.
-
-Build
------
-
-- The Windows build now uses Tcl/Tk 8.5.9 and sqlite3 3.7.4.
-
-- Issue #9234: argparse supports alias names for subparsers.
-
-
-What's New in Python 3.2 Beta 1?
-================================
-
-*Release date: 05-Dec-2010*
-
-Core and Builtins
------------------
-
-- Issue #10630: Return dict views from the dict proxy keys()/values()/items()
- methods.
-
-- Issue #10596: Fix float.__mod__ to have the same behaviour as float.__divmod__
- with respect to signed zeros. -4.0 % 4.0 should be 0.0, not -0.0.
-
-- Issue #1772833: Add the -q command-line option to suppress copyright and
- version output in interactive mode.
-
-- Provide an *optimize* parameter in the built-in compile() function.
-
-- Fixed several corner case issues on Windows in os.stat/os.lstat related to
- reparse points.
-
-- PEP 384 (Defining a Stable ABI) is implemented.
-
-- Issue #2690: Range objects support negative indices and slicing.
-
-- Issue #9915: Speed up sorting with a key.
-
-- Issue #8685: Speed up set difference ``a - b`` when source set ``a`` is much
- larger than operand ``b``. Patch by Andrew Bennetts.
-
-- Issue #10518: Bring back the callable() builtin.
-
-- Issue #7094: Added alternate formatting (specified by '#') to ``__format__``
- method of float, complex, and Decimal. This allows more precise control over
- when decimal points are displayed.
-
-- Issue #10474: range.count() should return integers.
-
-- Issue #1574217: isinstance now catches only AttributeError, rather than
- masking all errors.
-
-Library
--------
-
-- logging: added "handler of last resort". See http://bit.ly/last-resort-handler
-
-- test.support: Added TestHandler and Matcher classes for better support of
- assertions about logging.
-
-- Issue #4391: Use proper plural forms in argparse.
-
-- Issue #10601: sys.displayhook uses 'backslashreplace' error handler on
- UnicodeEncodeError.
-
-- Add the "display" and "undisplay" pdb commands.
-
-- Issue #7245: Add a SIGINT handler in pdb that allows to break a program again
- after a "continue" command.
-
-- Add the "interact" pdb command.
-
-- Issue #7905: Actually respect the keyencoding parameter to shelve.Shelf.
-
-- Issue #1569291: Speed up array.repeat().
-
-- Provide an interface to set the optimization level of compilation in
- py_compile, compileall and zipfile.PyZipFile.
-
-- Issue #7904: Changes to urllib.parse.urlsplit to handle schemes as defined by
- RFC3986. Anything before :// is considered a scheme and is followed by an
- authority (or netloc) and by '/' led path, which is optional.
-
-- Issue #6045: dbm.gnu databases now support get() and setdefault() methods.
-
-- Issue #10620: `python -m unittest` can accept file paths instead of module
- names for running specific tests.
-
-- Issue #9424: Deprecate the `unittest.TestCase` methods `assertEquals`,
- `assertNotEquals`, `assertAlmostEquals`, `assertNotAlmostEquals` and `assert_`
- and replace them with the correct methods in the Python test suite.
-
-- Issue #10272: The ssl module now raises socket.timeout instead of a generic
- SSLError on socket timeouts.
-
-- Issue #10528: Allow translators to reorder placeholders in localizable
- messages from argparse.
-
-- Issue #10497: Fix incorrect use of gettext in argparse.
-
-- Issue #10478: Reentrant calls inside buffered IO objects (for example by
- way of a signal handler) now raise a RuntimeError instead of freezing the
- current process.
-
-- logging: Added getLogRecordFactory/setLogRecordFactory with docs and tests.
-
-- Issue #10549: Fix pydoc traceback when text-documenting certain classes.
-
-- Issue #2001: New HTML server with enhanced Web page features. Patch by Ron
- Adam.
-
-- Issue #10360: In WeakSet, do not raise TypeErrors when testing for membership
- of non-weakrefable objects.
-
-- Issue #940286: pydoc.Helper.help() ignores input/output init parameters.
-
-- Issue #1745035: Add a command size and data size limit to smtpd.py, to prevent
- DoS attacks. Patch by Savio Sena.
-
-- Issue #4925: Add filename to error message when executable can't be found in
- subprocess.
-
-- Issue #10391: Don't dereference invalid memory in error messages in the ast
- module.
-
-- Issue #10027: st_nlink was not being set on Windows calls to os.stat or
- os.lstat. Patch by Hirokazu Yamamoto.
-
-- Issue #9333: Expose os.symlink only when the SeCreateSymbolicLinkPrivilege is
- held by the user's account, i.e., when the function can actually be used.
-
-- Issue #8879: Add os.link support for Windows.
-
-- Issue #7911: ``unittest.TestCase.longMessage`` defaults to True for improved
- failure messages by default. Patch by Mark Roddy.
-
-- Issue #1486713: HTMLParser now has an optional tolerant mode where it tries to
- guess at the correct parsing of invalid html.
-
-- Issue #10554: Add context manager support to subprocess.Popen objects.
-
-- Issue #8989: email.utils.make_msgid now has a domain parameter that can
- override the domain name used in the generated msgid.
-
-- Issue #9299: Add exist_ok parameter to os.makedirs to suppress the 'File
- exists' exception when a target directory already exists with the specified
- mode. Patch by Ray Allen.
-
-- Issue #9573: os.fork() now works correctly when triggered as a side effect of
- a module import.
-
-- Issue #10464: netrc now correctly handles lines with embedded '#' characters.
-
-- Added itertools.accumulate().
-
-- Issue #4113: Added custom ``__repr__`` method to ``functools.partial``.
- Original patch by Daniel Urban.
-
-- Issue #10273: Rename `assertRegexpMatches` and `assertRaisesRegexp` to
- `assertRegex` and `assertRaisesRegex`.
-
-- Issue #10535: Enable silenced warnings in unittest by default.
-
-- Issue #9873: The URL parsing functions in urllib.parse now accept ASCII byte
- sequences as input in addition to character strings.
-
-- Issue #10586: The statistics API for the new functools.lru_cache has been
- changed to a single cache_info() method returning a named tuple.
-
-- Issue #10323: itertools.islice() now consumes the minimum number of inputs
- before stopping. Formerly, the final state of the underlying iterator was
- undefined.
-
-- Issue #10565: The collections.Iterator ABC now checks for both __iter__ and
- __next__.
-
-- Issue #10242: Fixed implementation of unittest.ItemsEqual and gave it a new
- more informative name, unittest.CountEqual.
-
-- Issue #10561: In pdb, clear the breakpoints by the breakpoint number.
-
-- Issue #2986: difflib.SequenceMatcher gets a new parameter, autojunk, which can
- be set to False to turn off the previously undocumented 'popularity'
- heuristic. Patch by Terry Reedy and Eli Bendersky.
-
-- Issue #10534: in difflib, expose bjunk and bpopular sets; deprecate
- undocumented and now redundant isbjunk and isbpopular methods.
-
-- Issue #9846: zipfile is now correctly closing underlying file objects.
-
-- Issue #10459: Update CJK character names to Unicode 6.0.
-
-- Issue #4493: urllib.request adds '/' in front of path components which does not
- start with '/. Common behavior exhibited by browsers and other clients.
-
-- Issue #6378: idle.bat now runs with the appropriate Python version rather than
- the system default. Patch by Sridhar Ratnakumar.
-
-- Issue #10470: 'python -m unittest' will now run test discovery by default,
- when no extra arguments have been provided.
-
-- Issue #3709: BaseHTTPRequestHandler will buffer the headers and write to
- output stream only when end_headers is invoked. This is a speedup and an
- internal optimization. Patch by Andrew Shaaf.
-
-- Issue #10220: Added inspect.getgeneratorstate. Initial patch by Rodolpho
- Eckhardt.
-
-- Issue #10453: compileall now uses argparse instead of getopt, and thus
- provides clean output when called with '-h'.
-
-- Issue #8078: Add constants for higher baud rates in the termios module. Patch
- by Rodolpho Eckhardt.
-
-- Issue #10407: Fix two NameErrors in distutils.
-
-- Issue #10371: Deprecated undocumented functions in the trace module.
-
-- Issue #10467: Fix BytesIO.readinto() after seeking into a position after the
- end of the file.
-
-- configparser: 100% test coverage.
-
-- Issue #10499: configparser supports pluggable interpolation handlers. The
- default classic interpolation handler is called BasicInterpolation. Another
- interpolation handler added (ExtendedInterpolation) which supports the syntax
- used by zc.buildout (e.g. interpolation between sections).
-
-- configparser: the SafeConfigParser class has been renamed to ConfigParser.
- The legacy ConfigParser class has been removed but its interpolation mechanism
- is still available as LegacyInterpolation.
-
-- configparser: Usage of RawConfigParser is now discouraged for new projects
- in favor of ConfigParser(interpolation=None).
-
-- Issue #1682942: configparser supports alternative option/value delimiters.
-
-- Issue #5412: configparser supports mapping protocol access.
-
-- Issue #9411: configparser supports specifying encoding for read operations.
-
-- Issue #9421: configparser's getint(), getfloat() and getboolean() methods
- accept vars and default arguments just like get() does.
-
-- Issue #9452: configparser supports reading from strings and dictionaries
- (thanks to the mapping protocol API, the latter can be used to copy data
- between parsers).
-
-- configparser: accepted INI file structure is now customizable, including
- comment prefixes, name of the DEFAULT section, empty lines in multiline
- values, and indentation.
-
-- Issue #10326: unittest.TestCase instances can be pickled.
-
-- Issue #9926: Wrapped TestSuite subclass does not get __call__ executed.
-
-- Issue #9920: Skip tests for cmath.atan and cmath.atanh applied to complex
- zeros on systems where the log1p function fails to respect the sign of zero.
- This fixes a test failure on AIX.
-
-- Issue #9732: Addition of getattr_static to the inspect module.
-
-- Issue #10446: Module documentation generated by pydoc now links to a
- version-specific online reference manual.
-
-- Make the 'No module named' exception message from importlib consistent.
-
-- Issue #10443: Add the SSLContext.set_default_verify_paths() method.
-
-- Issue #10440: Support RUSAGE_THREAD as a constant in the resource module.
- Patch by Robert Collins.
-
-- Issue #10429: IMAP.starttls() stored the capabilities as bytes objects, rather
- than strings.
-
-C-API
------
-
-- Issue #10557: Added a new API function, PyUnicode_TransformDecimalToASCII(),
- which transforms non-ASCII decimal digits in a Unicode string to their ASCII
- equivalents.
-
-- Issue #9518: Extend the PyModuleDef_HEAD_INIT macro to explicitly
- zero-initialize all fields, fixing compiler warnings seen when building
- extension modules with gcc with "-Wmissing-field-initializers" (implied by
- "-W").
-
-- Issue #10255: Fix reference leak in Py_InitializeEx(). Patch by Neil
- Schemenauer.
-
-- structseq.h is now included in Python.h.
-
-- Loosen PyArg_ValidateKeywordArguments to allow dict subclasses.
-
-Tests
------
-
-- regrtest.py once again ensures the test directory is removed from sys.path
- when it is invoked directly as the __main__ module.
-
-- `python -m test` can be used to run the test suite as well as `python -m
- test.regrtest`.
-
-- Do not fail test_socket when the IP address of the local hostname cannot be
- looked up.
-
-- Issue #8886: Use context managers throughout test_zipfile. Patch by Eric
- Carstensen.
-
-Build
------
-
-- Issue #10325: Fix two issues in the fallback definitions for PY_ULLONG_MAX and
- PY_LLONG_MAX that made them unsuitable for use in preprocessor conditionals.
-
-Documentation
--------------
-
-- Issue #10299: List the built-in functions in a table in functions.rst.
-
-
-What's New in Python 3.2 Alpha 4?
-=================================
-
-*Release date: 13-Nov-2010*
-
-Core and Builtins
------------------
-
-- Issue #10372: Import the warnings module only after the IO library is
- initialized, so as to avoid bootstrap issues with the '-W' option.
-
-- Issue #10293: Remove obsolete field in the PyMemoryView structure, unused
- undocumented value PyBUF_SHADOW, and strangely-looking code in
- PyMemoryView_GetContiguous.
-
-- Issue #6081: Add str.format_map(), similar to ``str.format(**mapping)``.
-
-- If FileIO.__init__ fails, close the file descriptor.
-
-- Issue #10221: dict.pop(k) now has a key error message that includes the
- missing key (same message d[k] returns for missing keys).
-
-- Issue #5437: A preallocated MemoryError instance should not keep traceback
- data (including local variables caught in the stack trace) alive infinitely.
-
-- Issue #10186: Fix the SyntaxError caret when the offset is equal to the length
- of the offending line.
-
-- Issue #10089: Add support for arbitrary -X options on the command line. They
- can be retrieved through a new attribute ``sys._xoptions``.
-
-- Issue #4388: On Mac OS X, decode command line arguments from UTF-8, instead of
- the locale encoding. If the LANG (and LC_ALL and LC_CTYPE) environment
- variable is not set, the locale encoding is ISO-8859-1, whereas most programs
- (including Python) expect UTF-8. Python already uses UTF-8 for the filesystem
- encoding and to encode command line arguments on this OS.
-
-- Issue #9713, #10114: Parser functions (e.g. PyParser_ASTFromFile) expect
- filenames encoded to the filesystem encoding with the surrogateescape error
- handler (to support undecodable bytes), instead of UTF-8 in strict mode.
-
-- Issue #9997: Don't let the name "top" have special significance in scope
- resolution.
-
-- Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding its value as
- the default 512 when compiling on AIX.
-
-- Use locale encoding instead of UTF-8 to encode and decode filenames if
- Py_FileSystemDefaultEncoding is not set.
-
-- Issue #10095: fp_setreadl() doesn't reopen the file, instead reuse the file
- descriptor.
-
-- Issue #9418: Moved private string methods ``_formatter_parser`` and
- ``_formatter_field_name_split`` into a new ``_string`` module.
-
-- Issue #9992: Remove PYTHONFSENCODING environment variable.
-
-Library
--------
-
-- Issue #12943: python -m tokenize support has been added to tokenize.
-
-- Issue #10465: fix broken delegating of attributes by gzip._PaddedFile.
-
-- Issue #10356: Decimal.__hash__(-1) should return -2.
-
-- Issue #1553375: logging: Added stack_info kwarg to display stack information.
-
-- Issue #5111: IPv6 Host in the Header is wrapped inside [ ]. Patch by Chandru.
-
-- Fix Fraction.__hash__ so that Fraction.__hash__(-1) is -2. (See also issue
- #10356.)
-
-- Issue #4471: Add the IMAP.starttls() method to enable encryption on standard
- IMAP4 connections. Original patch by Lorenzo M. Catucci.
-
-- Issue #1466065: Add 'validate' option to base64.b64decode to raise an error if
- there are non-base64 alphabet characters in the input.
-
-- Issue #10386: Add __all__ to token module; this simplifies importing in
- tokenize module and prevents leaking of private names through ``import *``.
-
-- Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by Lorenzo
- M. Catucci.
-
-- Fix IMAP.login() to work properly.
-
-- Issue #9244: multiprocessing pool worker processes could terminate
- unexpectedly if the return value of a task could not be pickled. Only the
- ``repr`` of such errors are now sent back, wrapped in an
- ``MaybeEncodingError`` exception.
-
-- Issue #9244: The ``apply_async()`` and ``map_async()`` methods of
- ``multiprocessing.Pool`` now accepts a ``error_callback`` argument. This can
- be a callback with the signature ``callback(exc)``, which will be called if
- the target raises an exception.
-
-- Issue #10022: The dictionary returned by the ``getpeercert()`` method of SSL
- sockets now has additional items such as ``issuer`` and ``notBefore``.
-
-- ``usenetrc`` is now false by default for NNTP objects.
-
-- Issue #1926: Add support for NNTP over SSL on port 563, as well as STARTTLS.
- Patch by Andrew Vant.
-
-- Issue #10335: Add tokenize.open(), detect the file encoding using
- tokenize.detect_encoding() and open it in read only mode.
-
-- Issue #10321: Add support for binary data to smtplib.SMTP.sendmail, and a new
- method send_message to send an email.message.Message object.
-
-- Issue #6011: sysconfig and distutils.sysconfig use the surrogateescape error
- handler to parse the Makefile file. Avoid a UnicodeDecodeError if the source
- code directory name contains a non-ASCII character and the locale encoding is
- ASCII.
-
-- Issue #10329: The trace module writes reports using the input Python script
- encoding, instead of the locale encoding. Patch written by Alexander
- Belopolsky.
-
-- Issue #10126: Fix distutils' test_build when Python was built with
- --enable-shared.
-
-- Issue #9281: Prevent race condition with mkdir in distutils. Patch by
- Arfrever.
-
-- Issue #10229: Fix caching error in gettext.
-
-- Issue #10252: Close file objects in a timely manner in distutils code and
- tests. Patch by Brian Brazil, completed by Éric Araujo.
-
-- Issue #10180: Pickling file objects is now explicitly forbidden, since
- unpickling them produced nonsensical results.
-
-- Issue #10311: The signal module now restores errno before returning from its
- low-level signal handler. Patch by Hallvard B Furuseth.
-
-- Issue #10282: Add a ``nntp_implementation`` attribute to NNTP objects.
-
-- Issue #10283: Add a ``group_pattern`` argument to NNTP.list().
-
-- Issue #10155: Add IISCGIHandler to wsgiref.handlers to support IIS CGI
- environment better, and to correct unicode environment values for WSGI 1.0.1.
-
-- Issue #10281: nntplib now returns None for absent fields in the OVER/XOVER
- response, instead of raising an exception.
-
-- wsgiref now implements and validates PEP 3333, rather than an experimental
- extension of PEP 333. (Note: earlier versions of Python 3.x may have
- incorrectly validated some non-compliant applications as WSGI compliant; if
- your app validates with Python <3.2b1+, but not on this version, it is likely
- the case that your app was not compliant.)
-
-- Issue #10280: NNTP.nntp_version should reflect the highest version advertised
- by the server.
-
-- Issue #10184: Touch directories only once when extracting a tarfile.
-
-- Issue #10199: New package, ``turtledemo`` now contains selected demo scripts
- that were formerly found under Demo/turtle.
-
-- Issue #10265: Close file objects explicitly in sunau. Patch by Brian Brazil.
-
-- Issue #10266: uu.decode didn't close in_file explicitly when it was given as a
- filename. Patch by Brian Brazil.
-
-- Issue #10110: Queue objects didn't recognize full queues when the maxsize
- parameter had been reduced.
-
-- Issue #10160: Speed up operator.attrgetter. Patch by Christos Georgiou.
-
-- logging: Added style option to basicConfig() to allow %, {} or $-formatting.
-
-- Issue #5729: json.dumps() now supports using a string such as '\t' for
- pretty-printing multilevel objects.
-
-- Issue #10253: FileIO leaks a file descriptor when trying to open a file for
- append that isn't seekable. Patch by Brian Brazil.
-
-- Support context manager protocol for file-like objects returned by mailbox
- ``get_file()`` methods.
-
-- Issue #10246: uu.encode didn't close file objects explicitly when filenames
- were given to it. Patch by Brian Brazil.
-
-- Issue #10198: fix duplicate header written to wave files when writeframes() is
- called without data.
-
-- Close file objects in modulefinder in a timely manner.
-
-- Close a io.TextIOWrapper object in email.parser in a timely manner.
-
-- Close a file object in distutils.sysconfig in a timely manner.
-
-- Close a file object in pkgutil in a timely manner.
-
-- Issue #10233: Close file objects in a timely manner in the tarfile module and
- its test suite.
-
-- Issue #10093: ResourceWarnings are now issued when files and sockets are
- deallocated without explicit closing. These warnings are silenced by default,
- except in pydebug mode.
-
-- tarfile.py: Add support for all missing variants of the GNU sparse extensions
- and create files with holes when extracting sparse members.
-
-- Issue #10218: Return timeout status from ``Condition.wait`` in threading.
-
-- Issue #7351: Add ``zipfile.BadZipFile`` spelling of the exception name and
- deprecate the old name ``zipfile.BadZipfile``.
-
-- Issue #5027: The standard ``xml`` namespace is now understood by
- xml.sax.saxutils.XMLGenerator as being bound to
- http://www.w3.org/XML/1998/namespace. Patch by Troy J. Farrell.
-
-- Issue #5975: Add csv.unix_dialect class.
-
-- Issue #7761: telnetlib.interact failures on Windows fixed.
-
-- logging: Added style option to Formatter to allow %, {} or $-formatting.
-
-- Issue #5178: Added tempfile.TemporaryDirectory class that can be used as a
- context manager.
-
-- Issue #1349106: Generator (and BytesGenerator) flatten method and Header
- encode method now support a 'linesep' argument.
-
-- Issue #5639: Add a *server_hostname* argument to ``SSLContext.wrap_socket`` in
- order to support the TLS SNI extension. ``HTTPSConnection`` and ``urlopen()``
- also use this argument, so that HTTPS virtual hosts are now supported.
-
-- Issue #10166: Avoid recursion in pstats Stats.add() for many stats items.
-
-- Issue #10163: Skip unreadable registry keys during mimetypes initialization.
-
-- logging: Made StreamHandler terminator configurable.
-
-- logging: Allowed filters to be just callables.
-
-- logging: Added tests for _logRecordClass changes.
-
-- Issue #10092: Properly reset locale in calendar.Locale*Calendar classes.
-
-- logging: Added _logRecordClass, getLogRecordClass, setLogRecordClass to
- increase flexibility of LogRecord creation.
-
-- Issue #5117: Case normalization was needed on ntpath.relpath(). Also fixed
- root directory issue on posixpath.relpath(). (Ported working fixes from
- ntpath.)
-
-- Issue #1343: xml.sax.saxutils.XMLGenerator now has an option
- short_empty_elements to direct it to use self-closing tags when appropriate.
-
-- Issue #9807 (part 1): Expose the ABI flags in sys.abiflags. Add --abiflags
- switch to python-config for command line access.
-
-- Issue #6098: Don't claim DOM level 3 conformance in minidom.
-
-- Issue #5762: Fix AttributeError raised by ``xml.dom.minidom`` when an empty
- XML namespace attribute is encountered.
-
-- Issue #2830: Add the ``html.escape()`` function, which quotes all problematic
- characters by default. Deprecate ``cgi.escape()``.
-
-- Issue #9409: Fix the regex to match all kind of filenames, for interactive
- debugging in doctests.
-
-- Issue #9183: ``datetime.timezone(datetime.timedelta(0))`` will now return the
- same instance as ``datetime.timezone.utc``.
-
-- Issue #7523: Add SOCK_CLOEXEC and SOCK_NONBLOCK to the socket module, where
- supported by the system. Patch by Nikita Vetoshkin.
-
-- Issue #10063: file:// scheme will stop accessing remote hosts via ftp
- protocol. file:// urls had fallback to access remote hosts via ftp. This was
- not correct, change is made to raise a URLError when a remote host is tried to
- access via file:// scheme.
-
-- Issue #1710703: Write structures for an empty ZIP archive when a ZipFile is
- created in modes 'a' or 'w' and then closed without adding any files. Raise
- BadZipfile (rather than IOError) when opening small non-ZIP files.
-
-- Issue #10041: The signature of optional arguments in socket.makefile() didn't
- match that of io.open(), and they also didn't get forwarded properly to
- TextIOWrapper in text mode. Patch by Kai Zhu.
-
-- Issue #9003: http.client.HTTPSConnection, urllib.request.HTTPSHandler and
- urllib.request.urlopen now take optional arguments to allow for server
- certificate checking, as recommended in public uses of HTTPS.
-
-- Issue #6612: Fix site and sysconfig to catch os.getcwd() error, eg. if the
- current directory was deleted. Patch written by W. Trevor King.
-
-- Issue #3873: Speed up unpickling from file objects that have a peek() method.
-
-- Issue #10075: Add a session_stats() method to SSLContext objects.
-
-- Issue #9948: Fixed problem of losing filename case information.
-
-Extension Modules
------------------
-
-- Issue #5109: array.array constructor will now use fast code when
- initial data is provided in an array object with correct type.
-
-- Issue #6317: Now winsound.PlaySound only accepts unicode.
-
-- Issue #6317: Now winsound.PlaySound can accept non ascii filename.
-
-- Issue #9377: Use Unicode API for gethostname on Windows.
-
-- Issue #10143: Update "os.pathconf" values.
-
-- Issue #6518: Support context manager protcol for ossaudiodev types.
-
-- Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
-
-- Issue #9054: Fix a crash occurring when using the pyexpat module with expat
- version 2.0.1.
-
-- Issue #5355: Provide mappings from Expat error numbers to string descriptions
- and backwards, in order to actually make it possible to analyze error codes
- provided by ExpatError.
-
-- The Unicode database was updated to 6.0.0.
-
-C-API
------
-
-- Issue #10288: The deprecated family of "char"-handling macros
- (ISLOWER()/ISUPPER()/etc) have now been removed: use Py_ISLOWER() etc instead.
-
-- Issue #9778: Hash values are now always the size of pointers. A new Py_hash_t
- type has been introduced.
-
-Tools/Demos
------------
-
-- Issue #10117: Tools/scripts/reindent.py now accepts source files that use
- encoding other than ASCII or UTF-8. Source encoding is preserved when
- reindented code is written to a file.
-
-- Issue #7287: Demo/imputil/knee.py was removed.
-
-Tests
------
-
-- Issue #3699: Fix test_bigaddrspace and extend it to test bytestrings as well
- as unicode strings. Initial patch by Sandro Tosi.
-
-- Issue #10294: Remove dead code form test_unicode_file.
-
-- Issue #10123: Don't use non-ascii filenames in test_doctest tests. Add a new
- test specific to unicode (non-ascii name and filename).
-
-Build
------
-
-- Issue #10268: Add a --enable-loadable-sqlite-extensions option to configure.
-
-- Issue #8852: Allow the socket module to build on OpenSolaris.
-
-- Drop -OPT:Olimit compiler option.
-
-- Issue #10094: Use versioned .so files on GNU/kfreeBSD and the GNU Hurd.
-
-- Accept Oracle Berkeley DB 5.0 and 5.1 as backend for the dbm extension.
-
-- Issue #7473: avoid link errors when building a framework with a different set
- of architectures than the one that is currently installed.
-
-
-What's New in Python 3.2 Alpha 3?
-=================================
-
-*Release date: 09-Oct-2010*
-
-Core and Builtins
------------------
-
-- Issue #10068: Global objects which have reference cycles with their module's
- dict are now cleared again. This causes issue #7140 to appear again.
-
-- Issue #9738: Document PyErr_SetString() and PyErr_SetFromErrnoWithFilename()
- encodings.
-
-- ast.literal_eval() can now handle negative numbers. It is also a little more
- liberal in what it accepts without compromising the safety of the evaluation.
- For example, 3j+4 and 3+4+5 are both accepted.
-
-- Issue #10006: type.__abstractmethods__ now raises an AttributeError. As a
- result metaclasses can now be ABCs (see #9533).
-
-- Issue #8670: ctypes.c_wchar supports non-BMP characters with 32 bits wchar_t.
-
-- Issue #8670: PyUnicode_AsWideChar() and PyUnicode_AsWideCharString() replace
- UTF-16 surrogate pairs by single non-BMP characters for 16 bits Py_UNICODE and
- 32 bits wchar_t (eg. Linux in narrow build).
-
-- Issue #10003: Allow handling of SIGBREAK on Windows. Fixes a regression
- introduced by issue #9324.
-
-- Issue #9979: Create function PyUnicode_AsWideCharString().
-
-- Issue #7397: Mention that importlib.import_module() is probably what someone
- really wants to be using in __import__'s docstring.
-
-- Issue #8521: Allow CreateKeyEx, OpenKeyEx, and DeleteKeyEx functions of winreg
- to use named arguments.
-
-- Issue #9930: Remove bogus subtype check that was causing (e.g.)
- float.__rdiv__(2.0, 3) to return NotImplemented instead of the expected 1.5.
-
-- Issue #9808: Implement os.getlogin for Windows. Patch by Jon Anglin.
-
-- Issue #9901: Destroying the GIL in Py_Finalize() can fail if some other
- threads are still running. Instead, reinitialize the GIL on a second call to
- Py_Initialize().
-
-- All SyntaxErrors now have a column offset and therefore a caret when the error
- is printed.
-
-- Issue #9252: PyImport_Import no longer uses a fromlist hack to return the
- module that was imported, but instead gets the module from sys.modules.
-
-- Issue #9213: The range type_items now provides index() and count() methods, to
- conform to the Sequence ABC. Patch by Daniel Urban and Daniel Stutzbach.
-
-- Issue #7994: Issue a PendingDeprecationWarning if object.__format__ is called
- with a non-empty format string. This is an effort to future-proof user
- code. If a derived class does not currently implement __format__ but later
- adds its own __format__, it would most likely break user code that had
- supplied a format string. This will be changed to a DeprecationWaring in
- Python 3.3 and it will be an error in Python 3.4.
-
-- Issue #9828: Destroy the GIL in Py_Finalize(), so that it gets properly
- re-created on a subsequent call to Py_Initialize(). The problem (a crash)
- wouldn't appear in 3.1 or 2.7 where the GIL's structure is more trivial.
-
-- Issue #9210: Configure option --with-wctype-functions was removed. Using the
- functions from the libc caused the methods .upper() and lower() to become
- locale aware and created subtly wrong results.
-
-- Issue #9738: PyUnicode_FromFormat() and PyErr_Format() raise an error on a
- non-ASCII byte in the format string.
-
-- Issue #4617: Previously it was illegal to delete a name from the local
- namespace if it occurs as a free variable in a nested block. This limitation
- of the compiler has been lifted, and a new opcode introduced (DELETE_DEREF).
-
-- Issue #9804: ascii() now always represents unicode surrogate pairs as a single
- ``\UXXXXXXXX``, regardless of whether the character is printable or not.
- Also, the "backslashreplace" error handler now joins surrogate pairs into a
- single character on UCS-2 builds.
-
-- Issue #9757: memoryview objects get a release() method to release the
- underlying buffer (previously this was only done when deallocating the
- memoryview), and gain support for the context management protocol.
-
-- Issue #9797: pystate.c wrongly assumed that zero couldn't be a valid
- thread-local storage key.
-
-Library
--------
-
-- Issue #2236: distutils' mkpath ignored the mode parameter.
-
-- Fix typo in one sdist option (medata-check).
-
-- Issue #9199: Fix incorrect use of distutils.cmd.Command.announce.
-
-- Issue #1718574: Fix options that were supposed to accept arguments but did
- not in build_clib.
-
-- Issue #9437: Fix building C extensions with non-default LDFLAGS.
-
-- Issue #4661: email can now parse bytes input and generate either converted
- 7bit output or bytes output. Email version bumped to 5.1.0.
-
-- Issue #1589: Add ssl.match_hostname(), to help implement server identity
- verification for higher-level protocols.
-
-- Issue #9759: GzipFile now raises ValueError when an operation is attempted
- after the file is closed. Patch by Jeffrey Finkelstein.
-
-- Issue #9042: Fix interaction of custom translation classes and caching in
- gettext.
-
-- Issue #6706: asyncore.dispatcher now provides a handle_accepted() method
- returning a (sock, addr) pair which is called when a connection has been
- established with a new remote endpoint. This is supposed to be used as a
- replacement for old handle_accept() and avoids the user to call accept()
- directly.
-
-- Issue #9065: tarfile no longer uses "root" as the default for the uname and
- gname field.
-
-- Issue #8980: Fixed a failure in distutils.command check that was shadowed by
- an environment that does not have docutils. Patch by Arfrever.
-
-- Issue #1050268: parseaddr now correctly quotes double quote and backslash
- characters that appear inside quoted strings in email addresses.
-
-- Issue #10004: quoprimime no longer generates a traceback when confronted with
- invalid characters after '=' in a Q-encoded word.
-
-- Issue #1491: BaseHTTPServer nows send a ``100 Continue`` response before
- sending a 200 OK for the Expect: 100-continue request header.
-
-- Issue #9360: Cleanup and improvements to the nntplib module. The API now
- conforms to the philosophy of bytes and unicode separation in Python 3. A
- test suite has also been added.
-
-- Issue #9962: GzipFile now has the peek() method.
-
-- Issue #9090: When a socket with a timeout fails with EWOULDBLOCK or EAGAIN,
- retry the select() loop instead of bailing out. This is because select() can
- incorrectly report a socket as ready for reading (for example, if it received
- some data with an invalid checksum).
-
-- Issue #3612: Added new types to ctypes.wintypes. (CHAR and pointers)
-
-- Issue #9950: Fix socket.sendall() crash or misbehaviour when a signal is
- received. Now sendall() properly calls signal handlers if necessary, and
- retries sending if these returned successfully, including on sockets with a
- timeout.
-
-- Issue #9947: logging: Fixed locking bug in stopListening.
-
-- Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler.
-
-- Issue #9936: Fixed executable lines' search in the trace module.
-
-- Issue #9790: Rework imports necessary for samefile and sameopenfile
- in ntpath.
-
-- Issue #9928: Properly initialize the types exported by the bz2 module.
-
-- Issue #1675951: Allow GzipFile to work with unseekable file objects. Patch by
- Florian Festi.
-
-- Logging: Added QueueListener class to facilitate logging usage for
- performance-critical threads.
-
-- Issue #9916: Add some missing errno symbols.
-
-- Issue #9877: Expose sysconfig.get_makefile_filename()
-
-- logging: Added hasHandlers() method to Logger and LoggerAdapter.
-
-- Issue #9908: Fix os.stat() on bytes paths under Windows 7.
-
-- Issue #2643: msync() is not called anymore when deallocating an open mmap
- object, only munmap().
-
-- logging: Changed LoggerAdapter implementation internally, to make it easier to
- subclass in a useful way.
-
-- logging: hasHandlers method was added to Logger, and isEnabledFor,
- getEffectiveLevel, hasHandlers and setLevel were added to LoggerAdapter.
- LoggerAdapter was introduced into the unit tests for logging.
-
-- Issue #1686: Fix string.Template when overriding the pattern attribute.
-
-- Issue #9854: SocketIO objects now observe the RawIOBase interface in
- non-blocking mode: they return None when an operation would block (instead of
- raising an exception).
-
-- Issue #1730136: Fix the comparison between a tk.font.Font and an object of
- another kind.
-
-- Issue #9441: logging has better coverage for rotating file handlers.
-
-- Issue #9865: collections.OrderedDict now has a __sizeof__ method.
-
-- Issue #9854: The default read() implementation in io.RawIOBase now handles
- non-blocking readinto() returning None correctly.
-
-- Issue #1552: socket.socketpair() now returns regular socket.socket objects
- supporting the whole socket API (rather than the "raw" _socket.socket
- objects).
-
-- Issue #9853: Fix the signature of SSLSocket.recvfrom() and SSLSocket.sendto()
- to match the corresponding socket methods.
-
-- Issue #9840: Added a decorator to reprlib for wrapping __repr__ methods to make
- them handle recursive calls within the same thread.
-
-- logging: Enhanced HTTPHandler with secure and credentials initializers.
-
-- Issue #767645: Set os.path.supports_unicode_filenames to True on Mac OS X.
-
-- Issue #9837: The read() method of ZipExtFile objects (as returned by
- ZipFile.open()) could return more bytes than requested.
-
-- Issue #9826: OrderedDict.__repr__ can now handle self-referential values:
- d['x'] = d.
-
-- Issue #9825: Using __del__ in the definition of collections.OrderedDict made
- it possible for the user to create self-referencing ordered dictionaries which
- become permanently uncollectable GC garbage. Reinstated the Python 3.1
- approach of using weakref proxies so that reference cycles never get created
- in the first place.
-
-- Issue #9579, #9580: Fix os.confstr() for value longer than 255 bytes and
- encode the value with filesystem encoding and surrogateescape (instead of
- utf-8 in strict mode) . Patch written by David Watson.
-
-- Issue #9632: Remove sys.setfilesystemencoding() function: use PYTHONFSENCODING
- environment variable to set the filesystem encoding at Python startup.
- sys.setfilesystemencoding() creates inconsistencies because it is unable to
- reencode all filenames in all objects.
-
-- Issue #9410: Various optimizations to the pickle module, leading to speedups
- up to 4x (depending on the benchmark). Mostly ported from Unladen Swallow;
- initial patch by Alexandre Vassalotti.
-
-- The pprint module now supports printing OrderedDicts in their given order
- (formerly, it would sort the keys).
-
-- Logging: Added QueueHandler class to facilitate logging usage with
- multiprocessing.
-
-- Issue #9707: Rewritten reference implementation of threading.local which is
- friendlier towards reference cycles. This change is not normally visible
- since an optimized C implementation (_thread._local) is used instead.
-
-- Issue #6394: os.getppid() is now supported on Windows. Note that it will
- still return the id of the parent process after it has exited. This process
- id may even have been reused by another unrelated process.
-
-- Issue #9792: In case of connection failure, socket.create_connection() would
- swallow the exception and raise a new one, making it impossible to fetch the
- original errno, or to filter timeout errors. Now the original error is
- re-raised.
-
-- Issue #9758: When fcntl.ioctl() was called with mutable_flag set to True, and
- the passed buffer was exactly 1024 bytes long, the buffer wouldn't be updated
- back after the system call. Original patch by Brian Brazil.
-
-- Updates to the random module:
-
- * Document which parts of the module are guaranteed to stay the same across
- versions and which parts are subject to change.
-
- * Update the seed() method to use all of the bits in a string instead of just
- the hash value. This makes better use of the seed value and assures the
- seeding is platform independent. Issue #7889.
-
- * Improved the random()-->integer algorithm used in choice(), shuffle(),
- sample(), randrange(), and randint(). Formerly, it used int(n*random())
- which has a slight bias whenever n is not a power of two. Issue #9025.
-
- * Improved documentation of arguments to randrange(). Issue #9379.
-
-- collections.OrderedDict now supports a new method for repositioning keys to
- either end.
-
-- Issue #9754: Similarly to assertRaises and assertRaisesRegexp, unittest test
- cases now also have assertWarns and assertWarnsRegexp methods to check that a
- given warning type was triggered by the code under test.
-
-- Issue #5506: BytesIO objects now have a getbuffer() method exporting a view of
- their contents without duplicating them. The view is both readable and
- writable.
-
-- Issue #7566: Implement os.path.sameopenfile for Windows.
-
-- Issue #9293: I/O streams now raise ``io.UnsupportedOperation`` when an
- unsupported operation is attempted (for example, writing to a file open only
- for reading).
-
-- hashlib has two new constant attributes: algorithms_guaranteed and
- algorithms_avaiable that respectively list the names of hash algorithms
- guaranteed to exist in all Python implementations and the names of hash
- algorithms available in the current process.
-
-- A new package ``concurrent.futures`` as defined by PEP 3148.
-
-C-API
------
-
-- Add PyErr_SyntaxLocationEx, which supports passing a column offset.
-
-- Issue #9834: Don't segfault in PySequence_GetSlice, PySequence_SetSlice, or
- PySequence_DelSlice when the object doesn't have any mapping operations
- defined.
-
-Tools/Demos
------------
-
-- Issue #9188: The gdb extension now handles correctly narrow (UCS2) as well as
- wide (UCS4) unicode builds for both the host interpreter (embedded inside gdb)
- and the interpreter under test.
-
-Tests
------
-
-- Issue #9308: Added tests for importing encoded modules that do not
- depend on specific stdlib modules being encoded in a certain way.
-
-- Issue #1051: Add a script (Lib/test/make_ssl_certs.py) to generate the custom
- certificate and private key files used by SSL-related certs.
-
-- Issue #9978: Wait until subprocess completes initialization. (Win32KillTests
- in test_os)
-
-- Issue #7110: regrtest now sends test failure reports and single-failure
- tracebacks to stderr rather than stdout.
-
-- Issue #9628: fix runtests.sh -x option so more than one test can be excluded.
-
-- Issue #9899: Fix test_tkinter.test_font on various platforms. Patch by Ned
- Deily.
-
-- Issue #9894: Do not hardcode ENOENT in test_subprocess.
-
-- Issue #9315: Added tests for the trace module. Patch by Eli Bendersky.
-
-- Issue #9323: Make test.regrtest.__file__ absolute, this was not always the
- case when running profile or trace, for example.
-
-- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
-
-Build
------
-
-- Issue #10062: Allow building on platforms which do not have sem_timedwait.
-
-- Issue #10054: Some platforms provide uintptr_t in inttypes.h. Patch by Akira
- Kitada.
-
-- Issue #10055: Make json C89-compliant in UCS4 mode.
-
-- Issue #9552: Avoid unnecessary rebuild of OpenSSL. (Windows)
-
-- Issue #1633863: Don't ignore $CC under AIX.
-
-- Issue #9810: Compile bzip2 source files in Python's project file directly. It
- used to be built with bzip2's makefile.
-
-- Issue #9848: Stopping trying to build _weakref in setup.py as it is a built-in
- module.
-
-- Issue #9806: python-config now has an ``--extension-suffix`` option that
- outputs the suffix for dynamic libraries including the ABI version name
- defined by PEP 3149.
-
-- Issue #941346: Improve the build process under AIX and allow Python to be
- built as a shared library. Patch by Sébastien Sablé.
-
-- Issue #4026: Make the fcntl extension build under AIX. Patch by Sébastien
- Sablé.
-
-- Issue #9701: The MacOSX installer can patch the shell profile to ensure that
- the "bin" directory inside the framework is on the shell's search path. This
- feature now also supports the ZSH shell.
-
-
-What's New in Python 3.2 Alpha 2?
-=================================
-
-*Release date: 05-Sep-2010*
-
-Core and Builtins
------------------
-
-- Issue #9225: Remove the ROT_FOUR and DUP_TOPX opcode, the latter replaced by
- the new (and simpler) DUP_TOP_TWO. Performance isn't changed, but our
- bytecode is a bit simplified. Patch by Demur Rumed.
-
-- Issue #9766: Rename poorly named variables exposed by _warnings to prevent
- confusion with the proper variables names from 'warnings' itself.
-
-- Issue #9212: dict_keys and dict_items now provide the isdisjoint() method, to
- conform to the Set ABC. Patch by Daniel Urban.
-
-- Issue #9737: Fix a crash when trying to delete a slice or an item from a
- memoryview object.
-
-- Issue #9549: sys.setdefaultencoding() and PyUnicode_SetDefaultEncoding() are
- now removed, since their effect was inexistent in 3.x (the default encoding is
- hardcoded to utf-8 and cannot be changed).
-
-- Issue #7415: PyUnicode_FromEncodedObject() now uses the new buffer API
- properly. Patch by Stefan Behnel.
-
-- Issue #5553: The Py_LOCAL_INLINE macro now results in inlining on most
- platforms. Previously, it inlined only when using Microsoft Visual C.
-
-- Issue #9712: Fix tokenize on identifiers that start with non-ascii names.
-
-- Issue #9688: __basicsize__ and __itemsize__ must be accessed as Py_ssize_t.
-
-- Issue #9684: Added a definition for SIZEOF_WCHAR_T to PC/pyconfig.h, to match
- the pyconfig.h generated by configure on other systems.
-
-- Issue #9666: Only catch AttributeError in hasattr(). All other exceptions that
- occur during attribute lookup are now propagated to the caller.
-
-- Issue #8622: Add PYTHONFSENCODING environment variable to override the
- filesystem encoding.
-
-- Issue #5127: The C functions that access the Unicode Database now accept and
- return characters from the full Unicode range, even on narrow unicode builds
- (Py_UNICODE_TOLOWER, Py_UNICODE_ISDECIMAL, and others). A visible difference
- in Python is that unicodedata.numeric() now returns the correct value for
- large code points, and repr() may consider more characters as printable.
-
-- Issue #9425: Create PyModule_GetFilenameObject() function to get the filename
- as a unicode object, instead of a byte string. Function needed to support
- unencodable filenames. Deprecate PyModule_GetFilename() in favor on the new
- function.
-
-- Issue #8063: Call _PyGILState_Init() earlier in Py_InitializeEx().
-
-- Issue #9612: The set object is now 64-bit clean under Windows.
-
-- Issue #8202: sys.argv[0] is now set to '-m' instead of '-c' when searching for
- the module file to be executed with the -m command line option.
-
-- Issue #9599: Create PySys_FormatStdout() and PySys_FormatStderr() functions to
- write a message formatted by PyUnicode_FromFormatV() to sys.stdout and
- sys.stderr.
-
-- Issue #9542: Create PyUnicode_FSDecoder() function, a ParseTuple converter:
- decode bytes objects to unicode using PyUnicode_DecodeFSDefaultAndSize(); str
- objects are output as-is.
-
-- Issue #9203: Computed gotos are now enabled by default on supported compilers
- (which are detected by the configure script). They can still be disable
- selectively by specifying --without-computed-gotos.
-
-- Issue #9425: Create PyErr_WarnFormat() function, similar to PyErr_WarnEx() but
- use PyUnicode_FromFormatV() to format the warning message.
-
-- Issue #8530: Prevent stringlib fastsearch from reading beyond the front of an
- array.
-
-- Issue #5319: Print an error if flushing stdout fails at interpreter shutdown.
-
-- Issue #9337: The str() of a float or complex number is now identical to its
- repr().
-
-- Issue #9416: Fix some issues with complex formatting where the output with no
- type specifier failed to match the str output:
-
- - format(complex(-0.0, 2.0), '-') omitted the real part from the output,
- - format(complex(0.0, 2.0), '-') included a sign and parentheses.
-
-Extension Modules
------------------
-
-- Issue #8013: time.asctime and time.ctime no longer call system
- asctime and ctime functions. The year range for time.asctime is now
- 1900 through maxint. The range for time.ctime is the same as for
- time.localtime. The string produced by these functions is longer
- than 24 characters when year is greater than 9999.
-
-- Issue #6608: time.asctime is now checking struct tm fields its input
- before passing it to the system asctime. Patch by MunSic Jeong.
-
-- Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
- descriptor is provided. Patch by Pascal Chambon.
-
-- Issue #7736: Release the GIL around calls to opendir() and closedir() in the
- posix module. Patch by Marcin Bachry.
-
-- Issue #4835: make PyLong_FromSocket_t() and PyLong_AsSocket_t() private to the
- socket module, and fix the width of socket descriptors to be correctly
- detected under 64-bit Windows.
-
-- Issue #1027206: Support IDNA in gethostbyname, gethostbyname_ex, getaddrinfo
- and gethostbyaddr. getnameinfo is now restricted to numeric addresses as
- input.
-
-- Issue #9214: Set operations on a KeysView or ItemsView in collections now
- correctly return a set. Patch by Eli Bendersky.
-
-- Issue #5737: Add Solaris-specific mnemonics in the errno module. Patch by
- Matthew Ahrens.
-
-- Restore GIL in nis_cat in case of error. Decode NIS data to fs encoding, using
- the surrogate error handler.
-
-- Issue #665761: ``functools.reduce()`` will no longer mask exceptions other
- than ``TypeError`` raised by the iterator argument.
-
-- Issue #9570: Use PEP 383 decoding in os.mknod and os.mkfifo.
-
-- Issue #6915: Under Windows, os.listdir() didn't release the Global Interpreter
- Lock around all system calls. Original patch by Ryan Kelly.
-
-- Issue #8524: Add a detach() method to socket objects, so as to put the socket
- into the closed state without closing the underlying file descriptor.
-
-- Issue #477863: Emit a ResourceWarning at shutdown if gc.garbage is not empty.
-
-- Issue #6869: Fix a refcount problem in the _ctypes extension.
-
-- Issue #5504: ctypes should now work with systems where mmap can't be
- PROT_WRITE and PROT_EXEC.
-
-- Issue #9507: Named tuple repr will now automatically display the right name in
- a tuple subclass.
-
-- Issue #9324: Add parameter validation to signal.signal on Windows in order to
- prevent crashes.
-
-- Issue #9526: Remove some outdated (int) casts that were preventing the array
- module from working correctly with arrays of more than 2**31 elements.
-
-- Fix memory leak in ssl._ssl._test_decode_cert.
-
-- Issue #8065: Fix memory leak in readline module (from failure to free the
- result of history_get_history_state()).
-
-- Issue #9450: Fix memory leak in readline.replace_history_item and
- readline.remove_history_item for readline version >= 5.0.
-
-- Issue #8105: Validate file descriptor passed to mmap.mmap on Windows.
-
-- Issue #8046: Add context manager protocol support and .closed property to mmap
- objects.
-
-Library
--------
-
-- Issue #7451: Improve decoding performance of JSON objects, and reduce the
- memory consumption of said decoded objects when they use the same strings as
- keys.
-
-- Issue #1100562: Fix deep-copying of objects derived from the list and dict
- types. Patch by Michele Orrù and Björn Lindqvist.
-
-- Issue #9753: Fixed socket.dup, which did not always work correctly on Windows.
-
-- Issue #9421: Made the get<type> methods consistently accept the vars and
- default arguments on all parser classes.
-
-- Issue #7005: Fixed output of None values for RawConfigParser.write and
- ConfigParser.write.
-
-- Issue #8990: array.fromstring() and array.tostring() get renamed to
- frombytes() and tobytes(), respectively, to avoid confusion. Furthermore,
- array.frombytes(), array.extend() as well as the array.array() constructor now
- accept bytearray objects. Patch by Thomas Jollans.
-
-- Issue #808164: Fixed socket.close to avoid references to globals, to avoid
- issues when socket.close is called from a __del__ method.
-
-- Issue #9706: ssl module provides a better error handling in various
- circumstances.
-
-- Issue #1868: Eliminate subtle timing issues in thread-local objects by getting
- rid of the cached copy of thread-local attribute dictionary.
-
-- Issue #1512791: In setframerate() in the wave module, non-integral frame rates
- are rounded to the nearest integer.
-
-- Issue #8797: urllib2 does a retry for Basic Authentication failure instead of
- falling into recursion.
-
-- Issue #1194222: email.utils.parsedate now returns RFC2822 compliant four
- character years even if the message contains RFC822 two character years.
-
-- Issue #8750: Fixed MutableSet's methods to correctly handle reflexive
- operations on its self, namely x -= x and x ^= x.
-
-- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing error
- handling when accepting a new connection.
-
-- Issue #9601: ftplib now provides a workaround for non-compliant
- implementations such as IIS shipped with Windows server 2003 returning invalid
- response codes for MKD and PWD commands.
-
-- Issue #658749: asyncore's connect() method now correctly interprets winsock
- errors.
-
-- Issue #9501: Fixed logging regressions in cleanup code.
-
-- Fix functools.total_ordering() to skip methods inherited from object.
-
-- Issue #9572: Importlib should not raise an exception if a directory it thought
- it needed to create was done concurrently by another process.
-
-- Issue #9617: Signals received during a low-level write operation aren't
- ignored by the buffered IO layer anymore.
-
-- Issue #843590: Make "macintosh" an alias to the "mac_roman" encoding.
-
-- Create os.fsdecode(): decode from the filesystem encoding with surrogateescape
- error handler, or strict error handler on Windows.
-
-- Issue #3488: Provide convenient shorthand functions ``gzip.compress`` and
- ``gzip.decompress``. Original patch by Anand B. Pillai.
-
-- Issue #8807: poplib.POP3_SSL class now accepts a context parameter, which is a
- ssl.SSLContext object allowing bundling SSL configuration options,
- certificates and private keys into a single (potentially long-lived)
- structure.
-
-- Issue #8866: parameters passed to socket.getaddrinfo can now be specified as
- single keyword arguments.
-
-- Address XXX comment in dis.py by having inspect.py prefer to reuse the dis.py
- compiler flag values over defining its own.
-
-- Issue #9147: Added dis.code_info() which is similar to show_code() but returns
- formatted code information in a string rather than displaying on screen.
-
-- Issue #9567: functools.update_wrapper now adds a __wrapped__ attribute
- pointing to the original callable.
-
-- Issue #3445: functools.update_wrapper now tolerates missing attributes on
- wrapped callables.
-
-- Issue #5867: Add abc.abstractclassmethod and abc.abstractstaticmethod.
-
-- Issue #9605: posix.getlogin() decodes the username with file filesystem
- encoding and surrogateescape error handler. Patch written by David Watson.
-
-- Issue #9604: posix.initgroups() encodes the username using the fileystem
- encoding and surrogateescape error handler. Patch written by David Watson.
-
-- Issue #9603: posix.ttyname() and posix.ctermid() decode the terminal name
- using the filesystem encoding and surrogateescape error handler. Patch written
- by David Watson.
-
-- Issue #7647: The posix module now has the ST_RDONLY and ST_NOSUID constants,
- for use with the statvfs() function. Patch by Adam Jackson.
-
-- Issue #8688: MANIFEST files created by distutils now include a magic comment
- indicating they are generated. Manually maintained MANIFESTs without this
- marker will not be overwritten or removed.
-
-- Issue #7467: when reading a file from a ZIP archive, its CRC is checked and a
- BadZipfile error is raised if it doesn't match (as used to be the case in
- Python 2.5 and earlier).
-
-- Issue #9550: a BufferedReader could issue an additional read when the original
- read request had been satisfied, which could block indefinitely when the
- underlying raw IO channel was e.g. a socket. Report and original patch by
- Jason V. Miller.
-
-- Issue #3757: thread-local objects now support cyclic garbage collection.
- Thread-local objects involved in reference cycles will be deallocated timely
- by the cyclic GC, even if the underlying thread is still running.
-
-- Issue #9452: Add read_file, read_string, and read_dict to the configparser
- API; new source attribute to exceptions.
-
-- Issue #6231: Fix xml.etree.ElementInclude to include the tail of the current
- node.
-
-- Issue #8047: Fix the xml.etree serializer to return bytes by default. Use
- ``encoding="unicode"`` to generate a Unicode string.
-
-- Issue #8280: urllib2's Request method will remove fragments in the url. This
- is how it is supposed to work, wget and curl do the same. Previous behavior
- was wrong.
-
-- Issue #6683: For SMTP logins we now try all authentication methods advertised
- by the server. Many servers are buggy and advertise authentication methods
- they do not support in reality.
-
-- Issue #8814: function annotations (the ``__annotations__`` attribute) are now
- included in the set of attributes copied by default by functools.wraps and
- functools.update_wrapper. Patch by Terrence Cole.
-
-- Issue #2944: asyncore doesn't handle connection refused correctly.
-
-- Issue #4184: Private attributes on smtpd.SMTPChannel made public and deprecate
- the private attributes. Add tests for smtpd module.
-
-- Issue #3196: email header decoding is now forgiving if an RFC2047 encoded word
- encoded in base64 is lacking padding.
-
-- Issue #9444: Argparse now uses the first element of prefix_chars as the option
- character for the added 'h/help' option if prefix_chars does not contain a
- '-', instead of raising an error.
-
-- Issue #7372: Fix pstats regression when stripping paths from profile data
- generated with the profile module.
-
-- Issue #9428: Fix running scripts with the profile/cProfile modules from the
- command line.
-
-- Issue #7781: Fix restricting stats by entry counts in the pstats interactive
- browser.
-
-- Issue #9209: Do not crash in the pstats interactive browser on invalid regular
- expressions.
-
-- Update collections.OrderedDict to match the implementation in Py2.7 (based on
- lists instead of weakly referenced Link objects).
-
-- Issue #8397: Raise an error when attempting to mix iteration and regular reads
- on a BZ2File object, rather than returning incorrect results.
-
-- Issue #9448: Fix a leak of OS resources (mutexes or semaphores) when
- re-initializing a buffered IO object by calling its ``__init__`` method.
-
-- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
- across devices.
-
-- Issue #8826: Properly load old-style "expires" attribute in http.cookies.
-
-- Issue #1690103: Fix initial namespace for code run with trace.main().
-
-- Issue #7395: Fix tracebacks in pstats interactive browser.
-
-- Issue #8230: Fix Lib/test/sortperf.py.
-
-- Issue #8620: when a cmd.Cmd() is fed input that reaches EOF without a final
- newline, it no longer truncates the last character of the last command line.
-
-- Issue #5146: Handle UID THREAD command correctly in imaplib.
-
-- Issue #5147: Fix the header generated for cookie files written by
- http.cookiejar.MozillaCookieJar.
-
-- Issue #8198: In pydoc, output all help text to the correct stream when
- sys.stdout is reassigned.
-
-- Issue #7909: Do not touch paths with the special prefixes ``\\.\`` or ``\\?\``
- in ntpath.normpath().
-
-- Issue #1286: Allow using fileinput.FileInput as a context manager.
-
-- Add lru_cache() decorator to the functools module.
-
-Tools/Demos
------------
-
-- Fix ``Tools/scripts/checkpyc.py`` after PEP 3147.
-
-- Issue #8867: Fix ``Tools/scripts/serve.py`` to work with files containing
- non-ASCII content.
-
-Tests
------
-
-- Issue #9601: Provide a test case for ftplib.parse257.
-
-- Issue #8857: Provide a test case for socket.getaddrinfo.
-
-- Issue #7564: Skip test_ioctl if another process is attached to /dev/tty.
-
-- Issue #8433: Fix test_curses failure with newer versions of ncurses.
-
-- Issue #9496: Provide a test suite for the rlcompleter module. Patch by
- Michele Orrù.
-
-- Issue #8687: provide a test suite for sched.py module.
-
-Build
------
-
-- Issue #1303434: Generate ZIP file containing all PDBs.
-
-- Issue #9193: PEP 3149 is accepted.
-
-- Issue #3101: Helper functions _add_one_to_index_C() and _add_one_to_index_F()
- become _Py_add_one_to_index_C() and _Py_add_one_to_index_F(), respectively.
-
-- Issue #9700: define HAVE_BROKEN_POSIX_SEMAPHORES under AIX 6.x. Patch by
- Sébastien Sablé.
-
-- Don't run pgen twice when using make -j.
-
-
-What's New in Python 3.2 Alpha 1?
-=================================
-
-*Release date: 01-Aug-2010*
-
-Core and Builtins
------------------
-
-- Issue #8991: convertbuffer() rejects discontigious buffers.
-
-- Issue #7616: Fix copying of overlapping memoryview slices with the Intel
- compiler.
-
-- Issue #8413: structsequence now subclasses tuple.
-
-- Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the
- start byte and the continuation byte(s) are now considered invalid, instead of
- the number of bytes specified by the start byte. E.g.:
- '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and replaces
- with U+FFFD only the start byte ('\xf1') and the continuation byte ('\x80')
- even if '\xf1' is the start byte of a 4-bytes sequence. Previous versions
- returned a single u'\ufffd'.
-
-- Issue #9011: A negated imaginary literal (e.g., "-7j") now has real part -0.0
- rather than 0.0. So "-7j" is now exactly equivalent to "-(7j)".
-
-- Be more specific in error messages about positional arguments.
-
-- Issue #8949: "z" format of PyArg_Parse*() functions doesn't accept bytes
- objects, as described in the documentation.
-
-- Issue #6543: Write the traceback in the terminal encoding instead of utf-8.
- Fix the encoding of the modules filename. Patch written by Amaury Forgeot
- d'Arc.
-
-- Issue #9011: Remove buggy and unnecessary (in 3.x) ST->AST compilation code
- dealing with unary minus applied to a constant. The removed code was mutating
- the ST, causing a second compilation to fail.
-
-- Issue #850997: mbcs encoding (Windows only) handles errors argument: strict
- mode raises unicode errors. The encoder only supports "strict" and "replace"
- error handlers, the decoder only supports "strict" and "ignore" error
- handlers. Patch written by Mark Hammond.
-
-- Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
- "w*" format instead. Add tests for "w*" format.
-
-- Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
- formats if the string contains a null byte/character. Write unit tests for
- string formats.
-
-- Issue #7490: To facilitate sharing of doctests between 2.x and 3.x test
- suites, the IGNORE_EXCEPTION_DETAIL directive now also ignores the module
- location of the raised exception.
-
-- Issue #8969: On Windows, use mbcs codec in strict mode to encode and decode
- filenames and enable os.fsencode().
-
-- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
-
-- Issue #8941: Decoding big endian UTF-32 data in UCS-2 builds could crash the
- interpreter with characters outside the Basic Multilingual Plane (higher than
- 0x10000).
-
-- Issue #8950: (See also issue #5080). Py_ArgParse*() functions now raise
- TypeError instead of giving a DeprecationWarning when a float is parsed using
- the 'L' code (for long long). (All other integer codes already raise
- TypeError in this case.)
-
-- Issue #8922: Normalize the encoding name in PyUnicode_AsEncodedString() to
- enable shortcuts for upper case encoding name. Add also a shortcut for
- "iso-8859-1" in PyUnicode_AsEncodedString() and PyUnicode_Decode().
-
-- Issue #8838: Remove codecs.charbuffer_encode() function. The buffer protocol
- doesn't support "char buffer" anymore in Python 3.
-
-- Issue #8339: Remove "t#" format of PyArg_Parse*() functions, use "s#" or "s*"
- instead. codecs.charbuffer_encode() now accepts modifiable buffer objects
- like bytearray.
-
-- Issue #8837: Remove "O?" format of PyArg_Parse*() functions. The format is no
- used anymore and it was never documented.
-
-- In str.format(), raise a ValueError when indexes to arguments are too large.
-
-- Issue #2844: Make int('42', n) consistently raise ValueError for invalid
- integers n (including n = -909).
-
-- Issue #8188: Introduce a new scheme for computing hashes of numbers (instances
- of int, float, complex, decimal.Decimal and fractions.Fraction) that makes it
- easy to maintain the invariant that hash(x) == hash(y) whenever x and y have
- equal value.
-
-- Issue #8748: Fix two issues with comparisons between complex and integer
- objects. (1) The comparison could incorrectly return True in some cases
- (2**53+1 == complex(2**53) == 2**53), breaking transitivity of equality.
- (2) The comparison raised an OverflowError for large integers, leading to
- unpredictable exceptions when combining integers and complex objects in sets
- or dicts.
-
-- Issue #8766: Initialize _warnings module before importing the first module.
- Fix a crash if an empty directory called "encodings" exists in sys.path.
-
-- Issue #8589: Decode PYTHONWARNINGS environment variable with the file system
- encoding and surrogateescape error handler instead of the locale encoding to
- be consistent with os.environ. Add PySys_AddWarnOptionUnicode() function.
-
-- PyObject_Dump() encodes unicode objects to utf8 with backslashreplace (instead
- of strict) error handler to escape surrogates.
-
-- Issue #8715: Create PyUnicode_EncodeFSDefault() function: Encode a Unicode
- object to Py_FileSystemDefaultEncoding with the "surrogateescape" error
- handler, and return bytes. If Py_FileSystemDefaultEncoding is not set, fall
- back to UTF-8.
-
-- Enable shortcuts for common encodings in PyUnicode_AsEncodedString() for any
- error handler, not only the default error handler (strict).
-
-- Issue #8610: Load file system codec at startup, and display a fatal error on
- failure. Set the file system encoding to utf-8 (instead of None) if getting
- the locale encoding failed, or if nl_langinfo(CODESET) function is missing.
-
-- PyFile_FromFd() uses PyUnicode_DecodeFSDefault() instead of
- PyUnicode_FromString() to support surrogates in the filename and use the right
- encoding.
-
-- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
-
-- PyUnicode_DecodeFSDefaultAndSize() uses surrogateescape error handler.
-
-- Issue #8419: Prevent the dict constructor from accepting non-string keyword
- arguments.
-
-- Issue #8124: PySys_WriteStdout() and PySys_WriteStderr() don't execute
- indirectly Python signal handlers anymore because mywrite() ignores exceptions
- (KeyboardInterrupt).
-
-- Issue #8092: Fix PyUnicode_EncodeUTF8() to support error handler producing
- unicode string (eg. backslashreplace).
-
-- Issue #8485: PyUnicode_FSConverter() doesn't accept byteearray objects
- anymore, you have to convert your bytearray filenames to bytes.
-
-- Issue #7332: Remove the 16KB stack-based buffer in
- PyMarshal_ReadLastObjectFromFile, which doesn't bring any noticeable benefit
- compared to the dynamic memory allocation fallback. Patch by Charles-François
- Natali.
-
-- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is
- passed to bytes or bytearray.
-
-- Issue #7301: Add environment variable $PYTHONWARNINGS.
-
-- Issue #8329: Don't return the same lists from select.select when no fds are
- changed.
-
-- Issue #8259: 1L << (2**31) no longer produces an 'outrageous shift error' on
- 64-bit machines. The shift count for either left or right shift is permitted
- to be up to sys.maxsize.
-
-- Ensure that tokenization of identifiers is not affected by locale.
-
-- Issue #1222585: Added LDCXXSHARED for C++ support. Patch by Arfrever.
-
-- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
-
-- Issue #8211: Save/restore CFLAGS around AC_PROG_CC in configure.in, in case it
- is set.
-
-- Issue #8226: sys.setfilesystemencoding() raises a LookupError if the encoding
- is unknown.
-
-- Issue #1583863: A str subclass can now override the __str__ method.
-
-- Issue #8014: Setting a T_UINT or T_PYSSIZET attribute of an object with
- PyMemberDefs could produce an internal error; raise TypeError instead.
-
-- Issue #7845: Rich comparison methods on the complex type now return
- NotImplemented rather than raising a TypeError when comparing with an
- incompatible type; this allows user-defined classes to implement their own
- comparisons with complex.
-
-- Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt
- (SIGINT). If an error occurs while importing the site module, the error is
- printed and Python exits. Initialize the GIL before importing the site module.
-
-- Issue #7173: Generator finalization could invalidate sys.exc_info().
-
-- Issue #7544: Preallocate thread memory before creating the thread to avoid a
- fatal error in low memory condition.
-
-- Issue #7820: The parser tokenizer restores all bytes in the right if the BOM
- check fails.
-
-- Handle errors from looking up __prepare__ correctly.
-
-- Issue #5939: Add additional runtime checking to ensure a valid capsule in
- Modules/_ctypes/callproc.c.
-
-- Issue #7309: Fix unchecked attribute access when converting
- UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to strings.
-
-- Issue #6902: Fix problem with built-in types format incorrectly with 0
- padding.
-
-- Issue #7988: Fix default alignment to be right aligned for complex.__format__.
- Now it matches other numeric types.
-
-- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
- PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string and
- PyOS_string_to_double instead. See issue #5835 for the original deprecations.
-
-- Issue #7385: Fix a crash in `MemoryView_FromObject` when `PyObject_GetBuffer`
- fails. Patch by Florent Xicluna.
-
-- Issue #7788: Fix an interpreter crash produced by deleting a list slice with
- very large step value.
-
-- Issue #7766: Change sys.getwindowsversion() return value to a named tuple and
- add the additional members returned in an OSVERSIONINFOEX structure. The new
- members are service_pack_major, service_pack_minor, suite_mask, and
- product_type.
-
-- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`) could
- crash in many places because of the PyByteArray_AS_STRING() macro returning
- NULL. The macro now returns a statically allocated empty string instead.
-
-- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
- where the right hand operand is a set of constants, by turning the set into a
- frozenset and pre-building it as a constant. The comparison operation is made
- against the constant instead of building a new set each time it is executed (a
- similar optimization already existed which turned a list of constants into a
- pre-built tuple). Patch and additional tests by Dave Malcolm.
-
-- Issue #7622: Improve the split(), rsplit(), splitlines() and replace() methods
- of bytes, bytearray and unicode objects by using a common implementation based
- on stringlib's fast search. Patch by Florent Xicluna.
-
-- Issue #7632: Fix various str -> float conversion bugs present in 2.7 alpha 2,
- including: (1) a serious 'wrong output' bug that could occur for long (> 40
- digit) input strings, (2) a crash in dtoa.c that occurred in debug builds when
- parsing certain long numeric strings corresponding to subnormal values, (3) a
- memory leak for some values large enough to cause overflow, and (4) a number
- of flaws that could lead to incorrectly rounded results.
-
-- The __complex__ method is now looked up on the class of instances to make it
- consistent with other special methods.
-
-- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
- `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
-
-- Issue #7604: Deleting an unset slotted attribute did not raise an
- AttributeError.
-
-- Issue #7534: Fix handling of IEEE specials (infinities, nans, negative zero)
- in ** operator. The behaviour now conforms to that described in C99 Annex F.
-
-- Issue #1811: improve accuracy and cross-platform consistency for true division
- of integers: the result of a/b is now correctly rounded for ints a and b (at
- least on IEEE 754 platforms), and in particular does not depend on the
- internal representation of an int.
-
-- Issue #6834: replace the implementation for the 'python' and 'pythonw'
- executables on OSX.
-
- These executables now work properly with the arch(1) command: ``arch -ppc
- python`` will start a universal binary version of python in PPC mode (unlike
- previous releases).
-
-- Issue #7466: Segmentation fault when the garbage collector is called in the
- middle of populating a tuple. Patch by Florent Xicluna.
-
-- Issue #7419: setlocale() could crash the interpreter on Windows when called
- with invalid values.
-
-- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
- mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
-
-- Issue #7085: Fix crash when importing some extensions in a thread on MacOSX
- 10.6.
-
-- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
-
-- Issue #6970: Remove redundant calls when comparing objects that don't
- implement the relevant rich comparison methods.
-
-- Issue #7298: Fixes for range and reversed(range(...)). Iteration over
- range(a, b, c) incorrectly gave an empty iterator when a, b and c fit in C
- long but the length of the range did not. Also fix several cases where
- reversed(range(a, b, c)) gave wrong results, and fix a refleak for
- reversed(range(a, b, c)) with large arguments.
-
-- Issue #7244: itertools.izip_longest() no longer ignores exceptions raised
- during the formation of an output tuple.
-
-- Issue #3297: On wide unicode builds, do not split unicode characters into
- surrogates.
-
-- Remove length limitation when constructing a complex number from a string.
-
-- Issue #1087418: Boost performance of bitwise operations for longs.
-
-- Support for AtheOS has been completely removed from the code base. It was
- disabled since Python 3.0.
-
-- Support for several legacy threading libraries has been disabled. These
- libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
- will be entirely removed in 3.3.
-
-- Support for OSF* has been disabled. If nobody stands up, support will be
- removed in 3.3. See <http://bugs.python.org/issue8606>.
-
-- Peephole constant folding had missed UNARY_POSITIVE.
-
-- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
- fixes the problem of some exceptions being thrown at shutdown when the
- interpreter is killed. Patch by Adam Olsen.
-
-- Issue #7147: Remove support for compiling Python without complex number
- support.
-
-- Issue #7120: logging: Removed import of multiprocessing which is causing crash
- in GAE.
-
-- Issue #1754094: Improve the stack depth calculation in the compiler. There
- should be no other effect than a small decrease in memory use. Patch by
- Christopher Tur Lesniewski-Laas.
-
-- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when using
- byte values greater than 127. Patch by Derk Drukker.
-
-- Issue #1571184: The Unicode database contains properties for more characters.
- The tables for code points representing numeric values, white spaces or line
- breaks are now generated from the official Unicode Character Database files,
- and include information from the Unihan.txt file.
-
-- Issue #7019: Raise ValueError when unmarshalling bad long data, instead of
- producing internally inconsistent Python longs.
-
-- Issue #6990: Fix threading.local subclasses leaving old state around after a
- reference cycle GC which could be recycled by new locals.
-
-- Issue #5460: Fix an ambiguity in the grammar.
-
-- Issue #1766304: Improve performance of membership tests on range objects.
-
-- Issue #6713: Improve performance of integer -> string conversions.
-
-- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
-
-- Issue #6750: A text file opened with io.open() could duplicate its output when
- writing from multiple threads at the same time.
-
-- Issue #6707: dir() on an uninitialized module caused a crash.
-
-- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
-
-- Issue #6573: set.union() stopped processing inputs if an instance of self
- occurred in the argument chain.
-
-- Issue #6070: On posix platforms import no longer copies the execute bit from
- the .py file to the .pyc file if it is set.
-
-- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
-
-- Issue #6428: Since Python 3.0, the __bool__ method must return a bool object,
- and not an int. Fix the corresponding error message, and the documentation.
-
-- The deprecated PyCObject has been removed.
-
-- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h. This fixes a
- build failure on HP-UX: int32_t and uint32_t are defined in inttypes.h instead
- of stdint.h on that platform.
-
-- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and the
- 'surrogateescape' error handler, a string which contains unpaired surrogates.
-
-- Issue #4856: Remove checks for win NT.
-
-- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its argument
- to construct a null-initialized bytes object.
-
-- Issue #1023290: Add from_bytes() and to_bytes() methods to integers. These
- methods allow the conversion of integers to bytes, and vice-versa.
-
-- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes instances
- from being copied with copy.copy(), and bytes subclasses from being pickled
- properly.
-
-- Code objects now support weak references.
-
-- Issue #7072: isspace(0xa0) is true on Mac OS X.
-
-- Issue #8084: PEP 370 now conforms to system conventions for framework builds
- on MacOS X. That is, "python setup.py install --user" will install into
- "~/Library/Python/2.7" instead of "~/.local".
-
-C-API
------
-
-- Issue #2443: A new macro, `Py_VA_COPY`, copies the state of the
- variable argument list. `Py_VA_COPY` is equivalent to C99
- `va_copy`, but available on all python platforms.
-
-- PySlice_GetIndicesEx now clips the step to [-PY_SSIZE_T_MAX, PY_SSIZE_T_MAX]
- instead of [-PY_SSIZE_T_MAX-1, PY_SSIZE_T_MAX]. This makes it safe to do
- "step = -step" when reversing a slice.
-
-- Issue #5753: A new C API function, `PySys_SetArgvEx`, allows embedders of the
- interpreter to set sys.argv without also modifying sys.path. This helps fix
- `CVE-2008-5983
- <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
-
-- Add PyArg_ValidateKeywordArguments, which checks if all keyword arguments are
- strings in an efficient manner.
-
-- Issue #8276: PyEval_CallObject() is now only available in macro form. The
- function declaration, which was kept for backwards compatibility reasons, is
- now removed (the macro was introduced in 1997!).
-
-- Issue #7767: New function PyLong_AsLongLongAndOverflow added, analogous to
- PyLong_AsLongAndOverflow.
-
-- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
- has '\0' at the end.
-
-- Issue #5080: The argument parsing functions PyArg_ParseTuple,
- PyArg_ParseTupleAndKeywords, PyArg_VaParse, PyArg_VaParseTupleAndKeywords and
- PyArg_Parse now raise a DeprecationWarning for float arguments passed with the
- 'L' format code. This will become a TypeError in a future version of Python,
- to match the behaviour of the other integer format codes.
-
-- Issue #7033: Function ``PyErr_NewExceptionWithDoc()`` added.
-
-- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments) in
- PyArg_ParseTupleAndKeywords.
-
-- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V) and
- PyErr_Format, on machines with HAVE_LONG_LONG defined.
-
-- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD in
- PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be should used for
- accessing the d_type and d_name members of structures using PyDescr_COMMON.
-
-- Issue #6405: Remove duplicate type declarations in descrobject.h.
-
-- The code flags for old __future__ features are now available again.
-
-- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
- PyCode_Addr2Line().
-
-- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
- object at a specified file, function, and line number.
-
-- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
- ``const char *`` as the string is stored beyond the call.
-
-- Issue #2422: When compiled with the ``--with-valgrind`` option, the pymalloc
- allocator will be automatically disabled when running under Valgrind. This
- gives improved memory leak detection when running under Valgrind, while taking
- advantage of pymalloc at other times.
-
-Library
--------
-
-- In pdb, when Ctrl-C is entered while defining commands for a breakpoint, the
- old commands are restored.
-
-- For traceback debugging, the pdb listing now also shows the locations where
- the exception was originally (re)raised, if it differs from the last line
- executed (e.g. in case of finally clauses).
-
-- The pdb command "source" has been added. It displays the source code for a
- given object, if possible.
-
-- The pdb command "longlist" has been added. It displays the whole source code
- for the current function.
-
-- Issue #1503502: Make pdb.Pdb easier to subclass by putting message and error
- output into methods.
-
-- Issue #809887: Make the output of pdb's breakpoint deletions more consistent;
- emit a message when a breakpoint is enabled or disabled.
-
-- Issue #5294: Fix the behavior of pdb's "continue" command when called in the
- top-level debugged frame.
-
-- Issue #5727: Restore the ability to use readline when calling into pdb in
- doctests.
-
-- Issue #6719: In pdb, do not stop somewhere in the encodings machinery if the
- source file to be debugged is in a non-builtin encoding.
-
-- Issue #8048: Prevent doctests from failing when sys.displayhook has been
- reassigned.
-
-- Issue #8015: In pdb, do not crash when an empty line is entered as a
- breakpoint command.
-
-- In pdb, allow giving a line number to the "until" command.
-
-- Issue #1437051: For pdb, allow "continue" and related commands in .pdbrc
- files. Also, add a command-line option "-c" that runs a command as if given
- in .pdbrc.
-
-- Issue #4179: In pdb, allow "list ." as a command to return to the currently
- debugged line.
-
-- Issue #4108: In urllib.robotparser, if there are multiple ``User-agent: *``
- entries, consider the first one.
-
-- Issue #6630: Allow customizing regex flags when subclassing the
- string.Template class.
-
-- Issue #9411: Allow specifying an encoding for config files in the configparser
- module.
-
-- Issue #1682942: Improvements to configparser: support alternate delimiters,
- alternate comment prefixes and empty lines in values.
-
-- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
-
-- Issue #8966: ctypes: Remove implicit bytes-unicode conversion.
-
-- Issue #9378: python -m pickle <pickle file> will now load and display the
- first object in the pickle file.
-
-- Issue #4770: Restrict binascii module to accept only bytes (as specified).
- And fix the email package to encode to ASCII instead of ``raw-unicode-escape``
- before ASCII-to-binary decoding.
-
-- Issue #9384: ``python -m tkinter`` will now display a simple demo applet.
-
-- The default size of the re module's compiled regular expression cache has been
- increased from 100 to 500 and the cache replacement policy has changed from
- simply clearing the entire cache on overflow to forgetting the least recently
- used cached compiled regular expressions. This is a performance win for
- applications that use a lot of regular expressions and limits the impact of
- the performance hit anytime the cache is exceeded.
-
-- Issue #7113: Speed up loading in configparser. Patch by Łukasz Langa.
-
-- Issue #9032: XML-RPC client retries the request on EPIPE error. The EPIPE
- error occurs when the server closes the socket and the client sends a big
- XML-RPC request.
-
-- Issue #4629: getopt raises an error if an argument ends with "=", whereas
- getopt doesn't accept a value (eg. --help= is rejected if getopt uses
- ['help='] long options).
-
-- Issue #7989: Added pure python implementation of the `datetime` module. The C
- module is renamed to `_datetime` and if available, overrides all classes
- defined in datetime with fast C impementation. Python implementation is based
- on the original python prototype for the datetime module by Tim Peters with
- minor modifications by the PyPy project. The test suite now tests `datetime`
- module with and without `_datetime` acceleration using the same test cases.
-
-- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork().
-
-- Issue #9323: Fixed a bug in trace.py that resulted in loosing the name of the
- script being traced. Patch by Eli Bendersky.
-
-- Issue #9282: Fixed --listfuncs option of trace.py. Thanks Eli Bendersky for
- the patch.
-
-- Issue #3704: http.cookiejar was not properly handling URLs with a / in the
- parameters.
-
-- Issue #9268: ``pickletools.dis()`` now has an optional *annotate* argument
- which controls printing of opcode descriptions in ``dis()`` output.
-
-- Issue #1555570: email no longer inserts extra blank lines when a \r\n combo
- crosses an 8192 byte boundary.
-
-- Issue #9243: Fix sndhdr module and add unit tests, contributed by James Lee.
-
-- ``ast.literal_eval()`` now allows byte literals.
-
-- Issue #9137: Fix issue in MutableMapping.update, which incorrectly treated
- keyword arguments called 'self' or 'other' specially.
-
-- ``ast.literal_eval()`` now allows set literals.
-
-- Issue #9164: Ensure that sysconfig handles duplicate -arch flags in CFLAGS.
-
-- Issue #7646: The fnmatch pattern cache no longer grows without bound.
-
-- Issue #9136: Fix 'dictionary changed size during iteration' RuntimeError
- produced when profiling the decimal module. This was due to a dangerous
- iteration over 'locals()' in Context.__init__.
-
-- Fix extreme speed issue in Decimal.pow when the base is an exact power of 10
- and the exponent is tiny (for example, ``Decimal(10) **
- Decimal('1e-999999999')``).
-
-- Issue #9186: Fix math.log1p(-1.0) to raise ValueError, not OverflowError.
-
-- Issue #9130: Fix validation of relative imports in parser module.
-
-- Issue #9128: Fix validation of class decorators in parser module.
-
-- Issue #9094: python -m pickletools will now disassemble pickle files listed in
- the command line arguments. See output of python -m pickletools -h for more
- details.
-
-- Issue #5468: urlencode to handle bytes type and other encodings in its query
- parameter. Patch by Dan Mahn.
-
-- Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop module,
- ensure that the input string length is a multiple of the frame size.
-
-- Issue #6507: Accept source strings in dis.dis(). Original patch by Daniel
- Urban.
-
-- Issue #7829: Clearly document that the dis module is exposing an
- implementation detail that is not stable between Python VMs or releases.
-
-- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
- raises an exception.
-
-- Issue #9110: Addition of ContextDecorator to contextlib, for creating APIs
- that act as both context managers and decorators. contextmanager changes to
- use ContextDecorator.
-
-- Implement importlib.abc.SourceLoader and deprecate PyLoader and PyPycLoader
- for removal in Python 3.4.
-
-- Issue #9064: pdb's "up" and "down" commands now accept an optional argument
- giving the number of frames to go.
-
-- Issue #9018: os.path.normcase() now raises a TypeError if the argument is not
- ``str`` or ``bytes``.
-
-- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag on an
- OpenSSL structure.
-
-- Issue #8682: The ssl module now temporary increments the reference count of a
- socket object got through ``PyWeakref_GetObject``, so as to avoid possible
- deallocation while the object is still being used.
-
-- Issue #1368368: FancyURLOpener class changed to throw an Exception on wrong
- password instead of presenting an interactive prompt. Older behavior can be
- obtained by passing retry=True to http_error_xxx methods of FancyURLOpener.
-
-- Issue #8720: Fix regression caused by fix for #4050 by making getsourcefile
- smart enough to find source files in the linecache.
-
-- Issue #5610: feedparser no longer eats extra characters at the end of a body
- part if the body part ends with a ``\r\n``.
-
-- Issue #8986: math.erfc was incorrectly raising OverflowError for values
- between -27.3 and -30.0 on some platforms.
-
-- Issue #8784: Set tarfile default encoding to 'utf-8' on Windows.
-
-- Issue #8966: If a ctypes structure field is an array of c_char, convert its
- value to bytes instead of str (as done for c_char and c_char_p).
-
-- Issue #8188: Comparisons between Decimal and Fraction objects are now
- permitted, returning a result based on the exact numerical values of the
- operands. This builds on issue #2531, which allowed Decimal-to-float
- comparisons; all comparisons involving numeric types (bool, int, float,
- complex, Decimal, Fraction) should now act as expected.
-
-- Issue #8897: Fix sunau module, use bytes to write the header. Patch written by
- Thomas Jollans.
-
-- Issue #8899: time.struct_time now has class and attribute docstrings.
-
-- Issue #6470: Drop UNC prefix in FixTk.
-
-- Issue #4768: base64 encoded email body parts were incorrectly stored as binary
- strings. They are now correctly converted to strings.
-
-- Issue #8833: tarfile created hard link entries with a size field != 0 by
- mistake.
-
-- Charset.body_encode now correctly handles base64 encoding by encoding with the
- output_charset before calling base64mime.encode. Passes the tests from 2.x
- issue #1368247.
-
-- Issue #8845: sqlite3 Connection objects now have a read-only in_transaction
- attribute that is True iff there are uncommitted changes.
-
-- Issue #1289118: datetime.timedelta objects can now be multiplied by float and
- divided by float and int objects. Results are rounded to the nearest multiple
- of timedelta.resolution with ties resolved using round-half-to-even method.
-
-- Issue #7150: Raise OverflowError if the result of adding or subtracting
- timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
-
-- Issue #8806: add SSL contexts support to ftplib.
-
-- Issue #4769: Fix main() function of the base64 module, use sys.stdin.buffer
- and sys.stdout.buffer (instead of sys.stdin and sys.stdout) to use the bytes
- API.
-
-- Issue #8770: Now sysconfig displays information when it's called as a script.
- Initial idea by Sridhar Ratnakumar.
-
-- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
- Fredrik Håård.
-
-- Issue #8540: Decimal module: rename the Context._clamp attribute to
- Context.clamp and make it public. This is useful in creating contexts that
- correspond to the decimal interchange formats specified in IEEE 754.
-
-- Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM
- twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and
- StreamWriter classes.
-
-- Issue #3798: sys.exit(message) writes the message to sys.stderr file, instead
- of the C file stderr, to use stderr encoding and error handler.
-
-- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
- of files without one.
-
-- Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when
- comparing to a non-mapping.
-
-- Issue #8774: tabnanny uses the encoding cookie (#coding:...) to use the
- correct encoding.
-
-- Issue #4870: Add an `options` attribute to SSL contexts, as well as several
- ``OP_*`` constants to the `ssl` module. This allows to selectively disable
- protocol versions, when used in combination with `PROTOCOL_SSLv23`.
-
-- Issue #8759: Fixed user paths in sysconfig for posix and os2 schemes.
-
-- Issue #8663: distutils.log emulates backslashreplace error handler. Fix
- compilation in a non-ASCII directory if stdout encoding is ASCII (eg. if
- stdout is not a TTY).
-
-- Issue #8513: os.get_exec_path() supports b'PATH' key and bytes value.
- subprocess.Popen() and os._execvpe() support bytes program name. Add
- os.supports_bytes_environ flag: True if the native OS type of the environment
- is bytes (eg. False on Windows).
-
-- Issue #8633: tarfile is now able to read and write archives with "raw" binary
- pax headers as described in POSIX.1-2008.
-
-- Issue #1285086: Speed up urllib.parse functions: quote, quote_from_bytes,
- unquote, unquote_to_bytes.
-
-- Issue #8688: Distutils now recalculates MANIFEST everytime.
-
-- Issue #8477: ssl.RAND_egd() and ssl._test_decode_cert() support str with
- surrogates and bytes for the filename.
-
-- Issue #8550: Add first class ``SSLContext`` objects to the ssl module.
-
-- Issue #8681: Make the zlib module's error messages more informative when the
- zlib itself doesn't give any detailed explanation.
-
-- The audioop module now supports sound fragments of length greater than 2**31
- bytes on 64-bit machines, and is PY_SSIZE_T_CLEAN.
-
-- Issue #4972: Add support for the context manager protocol to the ftplib.FTP
- class.
-
-- Issue #8664: In py_compile, create __pycache__ when the compiled path is
- given.
-
-- Issue #8514: Add os.fsencode() function (Unix only): encode a string to bytes
- for use in the file system, environment variables or the command line.
-
-- Issue #8571: Fix an internal error when compressing or decompressing a chunk
- larger than 1GB with the zlib module's compressor and decompressor objects.
-
-- Issue #8603: Support bytes environmental variables on Unix: Add os.environb
- mapping and os.getenvb() function. os.unsetenv() encodes str argument to the
- file system encoding with the surrogateescape error handler (instead of
- utf8/strict) and accepts bytes. posix.environ keys and values are now bytes.
-
-- Issue #8573: asyncore _strerror() function might throw ValueError.
-
-- Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing error
- messages when accessing undefined class attributes because of the cheap
- inheritance with the underlying socket object. The cheap inheritance has been
- deprecated.
-
-- Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills.
- Patch by Tres Seaver.
-
-- Issue #8390: tarfile uses surrogateescape as the default error handler
- (instead of replace in read mode or strict in write mode).
-
-- Issue #7755: Use an unencumbered audio file for tests.
-
-- Issue #8621: uuid.uuid4() returned the same sequence of values in the parent
- and any children created using ``os.fork`` on MacOS X 10.6.
-
-- Issue #8567: Fix precedence of signals in Decimal module: when a Decimal
- operation raises multiple signals and more than one of those signals is
- trapped, the specification determines the order in which the signals should be
- handled. In many cases this order wasn't being followed, leading to the wrong
- Python exception being raised.
-
-- Issue #7865: The close() method of ``io`` objects should not swallow
- exceptions raised by the implicit flush(). Also qensure that calling close()
- several times is supported. Patch by Pascal Chambon.
-
-- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
- gc.DEBUG_STATS.
-
-- Issue #8354: The siginterrupt setting is now preserved for all signals, not
- just SIGCHLD.
-
-- Issue #7192: webbrowser.get("firefox") now works on Mac OS X, as does
- webbrowser.get("safari").
-
-- Issue #8464: tarfile no longer creates files with execute permissions set when
- mode="w|" is used.
-
-- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions of
- the Linux kernel. Patch by Yaniv Aknin.
-
-- Issue #8295: Added shutil.unpack_archive.
-
-- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
- It should correctly return an empty response now.
-
-- Issue #8546: Reject None given as the buffering argument to _pyio.open.
-
-- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
- Sridhar Ratnakumar.
-
-- Issue #6656: fix locale.format_string to handle escaped percents
- and mappings.
-
-- Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown, where
- the method could block indefinitely if called just before the event loop
- started running. This also fixes the occasional freezes witnessed in
- test_httpservers.
-
-- Issue #8524: When creating an SSL socket, the timeout value of the original
- socket wasn't retained (instead, a socket with a positive timeout would be
- turned into a non-blocking SSL socket).
-
-- Issue #5103: SSL handshake would ignore the socket timeout and block
- indefinitely if the other end didn't respond.
-
-- The do_handshake() method of SSL objects now adjusts the blocking mode of the
- SSL structure if necessary (as other methods already do).
-
-- Issue #8391: os.execvpe() and os.getenv() supports unicode with surrogates and
- bytes strings for environment keys and values.
-
-- Issue #8467: Pure Python implementation of subprocess encodes the error
- message using surrogatepass error handler to support surrogates in the
- message.
-
-- Issue #8468: bz2.BZ2File() accepts str with surrogates and bytes filenames.
-
-- Issue #8451: Syslog module now uses basename(sys.argv[0]) instead of the
- string "python" as the *ident*. openlog() arguments are all optional and
- keywords.
-
-- Issue #8108: Fix the unwrap() method of SSL objects when the socket has a
- non-infinite timeout. Also make that method friendlier with applications
- wanting to continue using the socket in clear-text mode, by disabling
- OpenSSL's internal readahead. Thanks to Darryl Miles for guidance.
-
-- Issue #8496: make mailcap.lookup() always return a list, rather than an
- iterator. Patch by Gregory Nofi.
-
-- Issue #8195: Fix a crash in sqlite Connection.create_collation() if the
- collation name contains a surrogate character.
-
-- Issue #8484: Load all ciphers and digest algorithms when initializing the _ssl
- extension, such that verification of some SSL certificates doesn't fail
- because of an "unknown algorithm".
-
-- Issue #6547: Added the ignore_dangling_symlinks option to shutil.copytree.
-
-- Issue #1540112: Now allowing the choice of a copy function in shutil.copytree.
-
-- Issue #4814: timeout parameter is now applied also for connections resulting
- from PORT/EPRT commands.
-
-- Issue #8463: added missing reference to bztar in shutil's documentation.
-
-- Issue #7154: urllib.request can now detect the proxy settings on OSX 10.6 (as
- long as the user didn't specify 'automatic proxy configuration').
-
-- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response code
- as stated in RFC-959 at chapter 5.4.
-
-- Issue #8394: _ctypes.dlopen() accepts bytes, bytearray and str with
- surrogates.
-
-- Issue #850728: Add a *timeout* parameter to the `acquire()` method of
- `threading.Semaphore` objects. Original patch by Torsten Landschoff.
-
-- Issue #8322: Add a *ciphers* argument to SSL sockets, so as to change the
- available cipher list. Helps fix test_ssl with OpenSSL 1.0.0.
-
-- Issue #8393: subprocess accepts bytes, bytearray and str with surrogates for
- the current working directory.
-
-- Issue #7606: XML-RPC traceback stored in X-traceback is now encoded to ASCII
- using backslashreplace error handler.
-
-- Issue #8412: os.system() now accepts bytes, bytearray and str with surrogates.
-
-- Issue #2987: RFC2732 support for urlparse (IPv6 addresses). Patch by Tony
- Locke and Hans Ulrich Niedermann.
-
-- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
-
-- Issue #7316: The acquire() method of lock objects in the ``threading``
- module now takes an optional timeout argument in seconds. Timeout support
- relies on the system threading library, so as to avoid a semi-busy wait loop.
-
-- Issue #8383: pickle and pickletools use surrogatepass error handler when
- encoding unicode as utf8 to support lone surrogates and stay compatible with
- Python 2.x and 3.x.
-
-- Issue #7585: difflib context and unified diffs now place a tab between
- filename and date, conforming to the 'standards' they were originally designed
- to follow. This improves compatibility with patch tools.
-
-- Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022
- character sets will now consistently use a Content-Transfer-Encoding of 7bit
- rather than sometimes being marked as 8bit.
-
-- Issue #8375: test_distutils now checks if the temporary directory are still
- present before it cleans them.
-
-- Issue #8374: Update the internal alias table in the ``locale`` module to
- cover recent locale changes and additions.
-
-- Issue #8321: Give access to OpenSSL version numbers from the `ssl` module,
- using the new attributes `ssl.OPENSSL_VERSION`, `ssl.OPENSSL_VERSION_INFO` and
- `ssl.OPENSSL_VERSION_NUMBER`.
-
-- Add functools.total_ordering() and functools.cmp_to_key().
-
-- Issue #8257: The Decimal construct now accepts a float instance directly,
- converting that float to a Decimal of equal value:
-
- >>> Decimal(1.1)
- Decimal('1.100000000000000088817841970012523233890533447265625')
-
-- Issue #8294: The Fraction constructor now accepts Decimal and float instances
- directly.
-
-- Issue #7279: Comparisons involving a Decimal signaling NaN now signal
- InvalidOperation instead of returning False. (Comparisons involving a quiet
- NaN are unchanged.) Also, Decimal quiet NaNs are now hashable; Decimal
- signaling NaNs remain unhashable.
-
-- Issue #2531: Comparison operations between floats and Decimal instances now
- return a result based on the numeric values of the operands; previously they
- returned an arbitrary result based on the relative ordering of id(float) and
- id(Decimal). See also issue #8188, which adds Decimal-to-Fraction
- comparisons.
-
-- Added a subtract() method to collections.Counter().
-
-- Issue #8233: When run as a script, py_compile.py optionally takes a single
- argument `-` which tells it to read files to compile from stdin. Each line is
- read on demand and the named file is compiled immediately. (Original patch by
- Piotr Ożarowski).
-
-- Backwards incompatible change: Unicode codepoints line tabulation (0x0B) and
- form feed (0x0C) are now considered linebreaks, as specified in Unicode
- Standard Annex #14. See issue #7643. http://www.unicode.org/reports/tr14/
-
-- Comparisons using one of <, <=, >, >= between a complex instance and a
- Fractions instance now raise TypeError instead of returning True/False. This
- makes Fraction <=> complex comparisons consistent with int <=> complex, float
- <=> complex, and complex <=> complex comparisons.
-
-- Issue #8139: ossaudiodev didn't initialize its types properly, therefore some
- methods (such as oss_mixer_device.fileno()) were not available. Initial patch
- by Bertrand Janin.
-
-- Issue #8205: Remove the "Modules" directory from sys.path when Python is
- running from the build directory (POSIX only).
-
-- Issue #7512: shutil.copystat() could raise an OSError when the filesystem
- didn't support chflags() (for example ZFS under FreeBSD). The error is now
- silenced.
-
-- Issue #7860: platform.uname now reports the correct 'machine' type when Python
- is running in WOW64 mode on 64 bit Windows.
-
-- Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets.
- Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking
- reads and writes are always retried by OpenSSL itself.
-
-- Issue #4282: Fix the main function of the profile module for a non-ASCII
- script, open the file in binary mode and not in text mode with the default
- (utf8) encoding.
-
-- Issue #8179: Fix macpath.realpath() on a non-existing path.
-
-- Issue #8024: Update the Unicode database to 5.2.
-
-- Issue #8168: py_compile now handles files with utf-8 BOMS.
-
-- ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is
- detected.
-
-- Issue #6716/2: Backslash-replace error output in compilall.
-
-- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
- with Tcl/Tk-8.5.
-
-- Issue #8140: extend compileall to compile single files. Add -i option.
-
-- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of the
- locale.
-
-- The internals of the subprocess module on POSIX systems have been replaced by
- an extension module (_posixsubprocess) so that the fork()+exec() can be done
- safely without the possibility of deadlock in multithreaded applications.
-
-- subprocess.Popen now has restore_signals and start_new_session features. The
- default of restore_signals=True is a new behavior compared to earlier Python
- versions. This means that signals such as SIGPIPE are not ignored by default
- in subprocesses launched by Python (Issue #1652).
-
-- Issue #6472: The xml.etree package is updated to ElementTree 1.3. The
- cElementTree module is updated too.
-
-- Issue #7774: Set sys.executable to an empty string if argv[0] has been set to
- an non existent program name and Python is unable to retrieve the real program
- name.
-
-- Issue #7880: Fix sysconfig when the python executable is a symbolic link.
-
-- Issue #6509: fix re.sub to work properly when the pattern, the string, and the
- replacement were all bytes. Patch by Antoine Pitrou.
-
-- The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure
- bugs and allows loading SQLite extensions from shared libraries.
-
-- Issue #1054943: Fix ``unicodedata.normalize('NFC', text)`` for the Public
- Review Issue #29 (http://unicode.org/review/pr-29.html).
-
-- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
- reset also the pointer to the current pointer context.
-
-- Issue #7232: Add support for the context manager protocol to the TarFile
- class.
-
-- Issue #7250: Fix info leak of os.environ across multi-run uses of
- wsgiref.handlers.CGIHandler.
-
-- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
-
-- Issue #691291: codecs.open() should not convert end of lines on reading and
- writing.
-
-- Issue #7869: logging: improved diagnostic for format-time errors.
-
-- Issue #7868: logging: added loggerClass attribute to Manager.
-
-- logging: Implemented PEP 391.
-
-- Issue #1537721: Add a writeheader() method to csv.DictWriter.
-
-- Issue #7959: ctypes callback functions are now registered correctly with the
- cycle garbage collector.
-
-- Issue #5801: removed spurious empty lines in wsgiref.
-
-- Issue #6666: fix bug in trace.py that applied the list of directories to be
- ignored only to the first file. Noted by Bogdan Opanchuk.
-
-- Issue #7597: curses.use_env() can now be called before initscr(). Noted by
- Kan-Ru Chen.
-
-- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
-
-- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
- messages parsed by email.Parser.HeaderParser.
-
-- Issue #7361: Importlib was not properly checking the number of bytes in
- bytecode file when it was less then 8 bytes.
-
-- Issue #7633: In the decimal module, Context class methods (with the exception
- of canonical and is_canonical) now accept instances of int and long wherever a
- Decimal instance is accepted, and implicitly convert that argument to Decimal.
- Previously only some arguments were converted.
-
-- Issue #7835: shelve should no longer produce mysterious warnings during
- interpreter shutdown.
-
-- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">") in XML
- processing instructions and comments. These raw characters are allowed by the
- XML specification, and are necessary when outputting e.g. PHP code in a
- processing instruction. Patch by Neil Muller.
-
-- Issue #6233: ElementTree failed converting unicode characters to XML entities
- when they could't be represented in the requested output encoding. Patch by
- Jerry Chen.
-
-- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to specify the
- compression type.
-
-- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
- specified, rather than fall through to AF_PACKET (in the `socket` module).
- Also, raise ValueError rather than TypeError when an unknown TIPC address type
- is specified. Patch by Brian Curtin.
-
-- Issue #6939: Fix file I/O objects in the `io` module to keep the original file
- position when calling `truncate()`. It would previously change the file
- position to the given argument, which goes against the tradition of
- ftruncate() and other truncation APIs. Patch by Pascal Chambon.
-
-- Issue #7610: Reworked implementation of the internal
- ``zipfile.ZipExtFile`` class used to represent files stored inside an
- archive. The new implementation is significantly faster and can be wrapped in
- a ``io.BufferedReader`` object for more speedups. It also solves an
- issue where interleaved calls to `read()` and `readline()` give wrong results.
- Patch by Nir Aides.
-
-- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
- allowing for a maximum number of tasks within the pool to be completed by the
- worker before that worker is terminated, and a new one created to replace it.
-
-- Issue #7792: Registering non-classes to ABCs raised an obscure error.
-
-- Issue #7785: Don't accept bytes in FileIO.write().
-
-- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
-
-- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
- the release file is empty.
-
-- Issue #7561: Fix crashes when using bytearray objects with the posix
- module.
-
-- Issue #1670765: Prevent email.generator.Generator from re-wrapping headers in
- multipart/signed MIME parts, which fixes one of the sources of invalid
- modifications to such parts by Generator.
-
-- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`. Patch
- by Florent Xicluna, along with some additional tests.
-
-- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a 1-byte
- argument. Patch by Victor Stinner.
-
-- Issue #3299: Fix possible crash in the _sre module when given bad argument
- values in debug mode. Patch by Victor Stinner.
-
-- Issue #2846: Add support for gzip.GzipFile reading zero-padded files. Patch
- by Brian Curtin.
-
-- Issue #7681: Use floor division in appropiate places in the wave module.
-
-- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
- Extension extra options may change the output without changing the .c
- file). Initial patch by Collin Winter.
-
-- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes gcc
- when it has a fully qualified configuration prefix. Initial patch by Arfrever.
-
-- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against the
- destruction of weakref'ed objects while iterating.
-
-- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by Victor
- Stinner.
-
-- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
- properly handles EINTR within the read, readline, write & flush methods. The
- socket.sendall() method now properly handles interrupted system calls.
-
-- Issue #7471: Improve the performance of GzipFile's buffering mechanism, and
- make it implement the `io.BufferedIOBase` ABC to allow for further speedups by
- wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
-
-- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
- parameter to allow specifying where your connections come from.
-
-- socket.create_connection now accepts an optional source_address parameter.
-
-- Issue #5511: now zipfile.ZipFile can be used as a context manager. Initial
- patch by Brian Curtin.
-
-- Issue #7556: Make sure Distutils' msvc9compile reads and writes the MSVC XML
- Manifest file in text mode so string patterns can be used in regular
- expressions.
-
-- Issue #7552: Removed line feed in the base64 Authorization header in the
- Distutils upload command to avoid an error when PyPI reads it. This occurs on
- long passwords. Initial patch by JP St. Pierre.
-
-- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
- Tatsuhiro Tsujikawa.
-
-- Issue #4757: `zlib.compress` and other methods in the zlib module now raise a
- TypeError when given an `str` object (rather than a `bytes`-like object).
- Patch by Victor Stinner and Florent Xicluna.
-
-- Issue #7349: Make methods of file objects in the io module accept None as an
- argument where file-like objects (ie StringIO and BytesIO) accept them to mean
- the same as passing no argument.
-
-- Issue #7357: tarfile no longer suppresses fatal extraction errors by default.
-
-- Issue #5949: added check for correct lineends in input from IMAP server in
- imaplib.
-
-- Add count() and reverse() methods to collections.deque().
-
-- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
-
-- Issue #6986: Fix crash in the JSON C accelerator when called with the wrong
- parameter types. Patch by Victor Stinner.
-
-- Issue #7457: added a read_pkg_file method to
- distutils.dist.DistributionMetadata.
-
-- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
- TLS with authentication credentials.
-
-- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is generated
- in Distutils. Patch by Stephen Emslie.
-
-- Issue #4120: Drop reference to CRT from manifest when building extensions with
- msvc9compiler.
-
-- Issue #7333: The `posix` module gains an `initgroups()` function providing
- access to the initgroups(3) C library call on Unix systems which implement it.
- Patch by Jean-Paul Calderone.
-
-- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
- ownership when the group is not forced, because the group may be different
- from the user's group and inherit from its container when the test is run.
-
-- Issue #4486: When an exception has an explicit cause, do not print its
- implicit context too. This affects the `traceback` module as well as built-in
- exception printing.
-
-- Issue #1515: Enable use of deepcopy() with instance methods. Patch by Robert
- Collins.
-
-- Issue #7403: logging: Fixed possible race condition in lock creation.
-
-- Issue #6845: Add restart support for binary upload in ftplib. The
- `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
- argument. Patch by Pablo Mouzo.
-
-- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()` method
- returning the total number of seconds in the duration. Patch by Brian
- Quinlan.
-
-- Issue #7133: SSL objects now support the new buffer API.
-
-- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters.
-
-- Issue #6123: tarfile now opens empty archives correctly and consistently
- raises ReadError on empty files.
-
-- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can be 2.
-
-- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
- of __str__.
-
-- Issue #7341: Close the internal file object in the TarFile constructor in case
- of an error.
-
-- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
- Windows box. Help provided by David Bolen.
-
-- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using TLS
- or SSL. Patch by Giampaolo Rodola'.
-
-- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch.
-
-- Issue #4969: The mimetypes module now reads the MIME database from the
- registry under Windows. Patch by Gabriel Genellina.
-
-- Issue #6816: runpy now provides a run_path function that allows Python code to
- execute file paths that refer to source or compiled Python files as well as
- zipfiles, directories and other valid sys.path entries that contain a
- __main__.py file. This allows applications that run other Python scripts to
- support the same flexibility as the CPython command line itself.
-
-- Issue #7318: multiprocessing now uses a timeout when it fails to establish a
- connection with another process, rather than looping endlessly. The default
- timeout is 20 seconds, which should be amply sufficient for local connections.
-
-- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
- unpickled. This fixes crashes under Windows when trying to run
- test_multiprocessing in verbose mode.
-
-- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
- argument added to the TextTestRunner constructor allowing a different result
- class to be used without having to subclass.
-
-- Issue #7588: ``unittest.TextTestResult.getDescription`` now includes the test
- name in failure reports even if the test has a docstring.
-
-- Issue #3001: Add a C implementation of recursive locks which is used by
- default when instantiating a `threading.RLock` object. This makes recursive
- locks as fast as regular non-recursive locks (previously, they were slower by
- 10x to 15x).
-
-- Issue #7282: Fix a memory leak when an RLock was used in a thread other than
- those started through `threading.Thread` (for example, using
- `_thread.start_new_thread()`).
-
-- Issue #7187: Importlib would not silence the IOError raised when trying to
- write new bytecode when it was made read-only.
-
-- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
- which are part of a reference cycle.
-
-- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
- objects on 64-bit systems. Patch by Michael Broghton.
-
-- Issue #6896: mailbox.Maildir now invalidates its internal cache each time a
- modification is done through it. This fixes inconsistencies and test failures
- on systems with slightly bogus mtime behaviour.
-
-- Issue #7246 & Issue #7208: getpass now properly flushes input before reading
- from stdin so that existing input does not confuse it and lead to incorrect
- entry or an IOError. It also properly flushes it afterwards to avoid the
- terminal echoing the input afterwards on OSes such as Solaris.
-
-- Issue #7233: Fix a number of two-argument Decimal methods to make sure that
- they accept an int or long as the second argument. Also fix buggy handling of
- large arguments (those with coefficient longer than the current precision) in
- shift and rotate.
-
-- Issue #4750: Store the basename of the original filename in the gzip FNAME
- header as required by RFC 1952.
-
-- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
- Distutils.
-
-- Issue #7218: Fix test_site for win32, the directory comparison was done with
- an uppercase.
-
-- Issue #7205: Fix a possible deadlock when using a BZ2File object from
- several threads at once.
-
-- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
-
-- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
- larger than emax.
-
-- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
- platforms, and assorted locale fixes by Derk Drukker.
-
-- Issue #5833: Fix extra space character in readline completion with the GNU
- readline library version 6.0.
-
-- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment.
-
-- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
- anachronisms in the code which were a relic of 1.5.2 compatibility.
-
-- Issue #7082: When falling back to the MIME 'name' parameter, the correct place
- to look for it is the Content-Type header.
-
-- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
- builtin tokenizer.
-
-- Issue #7048: Force Decimal.logb to round its result when that result is too
- large to fit in the current precision.
-
-- Issue #6236, #6348: Fix various failures in the I/O library under AIX and
- other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
-
-- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...) does now
- always result in NULL.
-
-- Issue #5042: Structure sub-subclass does now initialize correctly with base
- class positional arguments.
-
-- Issue #6882: Import uuid creates zombies processes.
-
-- Issue #6635: Fix profiler printing usage message.
-
-- Issue #6856: Add a filter keyword argument to TarFile.add().
-
-- Issue #6888: pdb's alias command was broken when no arguments were given.
-
-- Issue #6857: Default format() alignment should be '>' for Decimal instances.
-
-- Issue #6795: int(Decimal('nan')) now raises ValueError instead of returning
- NaN or raising InvalidContext. Also, fix infinite recursion in
- long(Decimal('nan')).
-
-- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats with no
- type specifier.
-
-- Issue #6239: ctypes.c_char_p return value must return bytes.
-
-- Issue #6838: Use a list to accumulate the value instead of repeatedly
- concatenating strings in http.client's HTTPResponse._read_chunked providing a
- significant speed increase when downloading large files servend with a
- Transfer-Encoding of 'chunked'.
-
-- Trying to import a submodule from a module that is not a package, ImportError
- should be raised, not AttributeError.
-
-- When the globals past to importlib.__import__() has __package__ set to None,
- fall back to computing what __package__ should be instead of giving up.
-
-- Raise a TypeError when the name of a module to be imported for
- importlib.__import__ is not a string (was raising an AttributeError before).
-
-- Allow the fromlist passed into importlib.__import__ to be any iterable.
-
-- Have importlib raise ImportError if None is found in sys.modules.
-
-- Issue #6054: Do not normalize stored pathnames in tarfile.
-
-- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
- payloads are now ordered by integer value rather than lexicographically.
-
-- Issue #1356969: Add missing info methods in tix.HList.
-
-- Issue #1522587: New constants and methods for the tix.Grid widget.
-
-- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
-
-- Issue #1119673: Do not override tkinter.Text methods when creating a
- ScrolledText.
-
-- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
-
-- Issue #1135: Add the XView and YView mix-ins to avoid duplicating the xview*
- and yview* methods.
-
-- Issue #6629: Fix a data corruption issue in the new I/O library, which could
- occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
- "wb+" mode) after having buffered a certain amount of data for reading. This
- bug was not present in the pure Python implementation.
-
-- Issue #6622: Fix "local variable 'secret' referenced before assignment" bug in
- POP3.apop.
-
-- Issue #2715: Remove remnants of Carbon.File from binhex module.
-
-- Issue #6595: The Decimal constructor now allows arbitrary Unicode decimal
- digits in input, as recommended by the standard. Previously it was restricted
- to accepting [0-9].
-
-- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
- DO/DONT correctly.
-
-- Issue #1424152: Fix for http.client, urllib.request to support SSL while
- working through proxy. Original patch by Christopher Li, changes made by
- Senthil Kumaran.
-
-- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
- loaders that allow for modules to be executed. Both importlib.abc.PyLoader and
- PyPycLoader inherit from this class and provide implementations in relation to
- other methods required by the ABCs.
-
-- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
- the documentation said it did even though the code in PyLoader relied on the
- abstract method required by ResourceLoader.
-
-- Issue #6431: Make Fraction type return NotImplemented when it doesn't know how
- to handle a comparison without loss of precision. Also add correct handling
- of infinities and nans for comparisons with float.
-
-- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
-
-- Issue #6358: The exit status of a command started with os.popen() was reported
- differently than it did with python 2.x.
-
-- Issue #6323: The pdb debugger did not exit when running a script with a syntax
- error.
-
-- Issue #3392: The subprocess communicate() method no longer fails in select()
- when file descriptors are large; communicate() now uses poll() when possible.
-
-- Issue #6369: Fix an RLE decompression bug in the binhex module.
-
-- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
-
-- The deprecated function string.maketrans has been removed.
-
-- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
- sys.path.
-
-- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
-
-- The os.get_exec_path() function to return the list of directories that will be
- searched for an executable when launching a subprocess was added.
-
-- Issue #7481: When a threading.Thread failed to start it would leave the
- instance stuck in initial state and present in threading.enumerate().
-
-- Issue #1068268: The subprocess module now handles EINTR in internal os.waitpid
- and os.read system calls where appropriate.
-
-- Issue #6729: Added ctypes.c_ssize_t to represent ssize_t.
-
-- Issue #6247: The argparse module has been added to the standard library.
-
-- Issue #8235: _socket: Add the constant ``SO_SETFIB``. SO_SETFIB is a socket
- option available on FreeBSD 7.1 and newer.
-
-- Issue #9315: Fix for the trace module to record correct class name
- for tracing methods.
-
-Extension Modules
------------------
-
-- Issue #9959: Tweak formula used for computing math.log of an integer,
- making it marginally more accurate for exact powers of 2.
-
-- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
-
-- Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly
- compared to other unix systems. In particular, os.getgroups() does not reflect
- any changes made using os.setgroups() but basicly always returns the same
- information as the id command. os.getgroups() can now return more than 16
- groups on MacOSX.
-
-- Issue #6095: Make directory argument to os.listdir optional.
-
-- Issue #9277: Fix bug in struct.pack for bools in standard mode (e.g.,
- struct.pack('>?')): if conversion to bool raised an exception then that
- exception wasn't properly propagated on machines where char is unsigned.
-
-- Issue #5180: Fixed a bug that prevented loading 2.x pickles in 3.x python when
- they contain instances of old-style classes.
-
-- Issue #9165: Add new functions math.isfinite and cmath.isfinite, to accompany
- existing isinf and isnan functions.
-
-- Issue #1578269: Implement os.symlink for Windows 6.0+. Patch by Jason
- R. Coombs.
-
-- In struct.pack, correctly propogate exceptions from computing the truth of an
- object in the '?' format.
-
-- Issue #9000: datetime.timezone objects now have eval-friendly repr.
-
-- In the math module, correctly lookup __trunc__, __ceil__, and __floor__ as
- special methods.
-
-- Issue #9005: Prevent utctimetuple() from producing year 0 or year 10,000.
- Prior to this change, timezone adjustment in utctimetuple() could produce
- tm_year value of 0 or 10,000. Now an OverflowError is raised in these edge
- cases.
-
-- Issue #6641: The ``datetime.strptime`` method now supports the ``%z``
- directive. When the ``%z`` directive is present in the format string, an
- aware ``datetime`` object is returned with ``tzinfo`` bound to a
- ``datetime.timezone`` instance constructed from the parsed offset. If both
- ``%z`` and ``%Z`` are present, the data in ``%Z`` field is used for timezone
- name, but ``%Z`` data without ``%z`` is discarded.
-
-- Issue #5094: The ``datetime`` module now has a simple concrete class
- implementing ``datetime.tzinfo`` interface. Instances of the new class,
- ``datetime.timezone``, return fixed name and UTC offset from their
- ``tzname(dt)`` and ``utcoffset(dt)`` methods. The ``dst(dt)`` method always
- returns ``None``. A class attribute, ``utc`` contains an instance
- representing the UTC timezone. Original patch by Rafe Kaplan.
-
-- Issue #8973: Add __all__ to struct module; this ensures that help(struct)
- includes documentation for the struct.Struct class.
-
-- Issue #3129: Trailing digits in struct format string are no longer ignored.
- For example, "1" or "ilib123" are now invalid formats and cause
- ``struct.error`` to be raised. Patch by Caleb Deveraux.
-
-- Issue #7384: If the system readline library is linked against ncurses, the
- curses module must be linked against ncurses as well. Otherwise it is not safe
- to load both the readline and curses modules in an application.
-
-- Issue #2810: Fix cases where the Windows registry API returns ERROR_MORE_DATA,
- requiring a re-try in order to get the complete result.
-
-- Issue #8692: Optimize math.factorial: replace the previous naive algorithm
- with an improved 'binary-split' algorithm that uses fewer multiplications and
- allows many of the multiplications to be performed using plain C integer
- arithmetic instead of PyLong arithmetic. Also uses a lookup table for small
- arguments.
-
-- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
- overflow checks in the audioop module.
-
-- Issue #8644: The accuracy of td.total_seconds() has been improved (by
- calculating with integer arithmetic instead of float arithmetic internally):
- the result is now always correctly rounded, and is equivalent to ``td /
- timedelta(seconds=1)``.
-
-- Issue #2706: Allow division of a timedelta by another timedelta: timedelta /
- timedelta, timedelta % timedelta, timedelta // timedelta and divmod(timedelta,
- timedelta) are all supported.
-
-- Issue #8314: Fix unsigned long long bug in libffi on Sparc v8.
-
-- Issue #8300: When passing a non-integer argument to struct.pack with any
- integer format code, struct.pack first attempts to convert the non-integer
- using its __index__ method. If that method is non-existent or raises
- TypeError it goes on to try the __int__ method, as described below.
-
-- Issue #8142: Update libffi to the 3.0.9 release.
-
-- Issue #6949: Allow the _dbm extension to be built with db 4.8.x.
-
-- Issue #6544: Fix a reference leak in the kqueue implementation's error
- handling.
-
-- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
- msvcr100.dll is not a platform assembly anymore.
-
-- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
-
-- Issue #7078: Set struct.__doc__ from _struct.__doc__.
-
-- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
-
-- Issue #6877: It is now possible to link the readline extension to the libedit
- readline emulation on OSX 10.5 or later.
-
-- Issue #6848: Fix curses module build failure on OS X 10.6.
-
-- Fix a segfault that could be triggered by expat with specially formed input.
-
-- Issue #6561: '\d' in a regex now matches only characters with Unicode category
- 'Nd' (Number, Decimal Digit). Previously it also matched characters with
- category 'No'.
-
-- Issue #4509: Array objects are no longer modified after an operation failing
- due to the resize restriction in-place when the object has exported buffers.
-
-- Issue #2389: Array objects are now pickled in a portable manner.
-
-- Expat: Fix DoS via XML document with malformed UTF-8 sequences
- (CVE_2009_3560).
-
-- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a thread
- could raise an incorrect RuntimeError about not holding the import lock. The
- import lock is now reinitialized after fork.
-
-- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
- parameter on some platforms such as OS X.
-
-- Build the ossaudio extension on GNU/kFreeBSD.
-
-- Issue #7347: winreg: Add CreateKeyEx and DeleteKeyEx, as well as fix a bug in
- the return value of QueryReflectionKey.
-
-- Issue #7567: PyCurses_setupterm: Don't call ``setupterm`` twice.
-
-Build
------
-
-- Use OpenSSL 1.0.0a on Windows.
-
-- Issue #9280: Make sharedinstall depend on sharedmods.
-
-- Issue #9189: Make a user-specified CFLAGS, CPPFLAGS, or LDFLAGS setting
- override the configure and makefile defaults, without deleting options the
- user didn't intend to override. Developers should no longer need to specify
- OPT or EXTRA_CFLAGS, although those variables are still present for
- backward-compatibility.
-
-- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
-
-- Issue #1759169, #8864: Drop _XOPEN_SOURCE on Solaris, define it for
- multiprocessing only.
-
-- Issue #8625: Turn off optimization in --with-pydebug builds with gcc.
- (Optimization was unintentionally turned on in gcc --with-pydebug builds as a
- result of the issue #1628484 fix, combined with autoconf's strange choice of
- default CFLAGS produced by AC_PROG_CC for gcc.)
-
-- Issue #3646: It is now easily possible to install a Python framework into your
- home directory on MacOSX, see Mac/README for more information.
-
-- Issue #3928: os.mknod() now available in Solaris, also.
-
-- Issue #3326: Build Python without -fno-strict-aliasing when the gcc does not
- give false warnings.
-
-- Issue #1628484: The Makefile doesn't ignore the CFLAGS environment variable
- anymore. It also forwards the LDFLAGS settings to the linker when building a
- shared library.
-
-- Issue #6716: Quote -x arguments of compileall in MSI installer. Exclude 2to3
- tests from compileall.
-
-- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
-
-- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the private
- memory allocation scheme in dtoa.c and use PyMem_Malloc and PyMem_Free
- instead. Also disable caching of powers of 5.
-
-- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
-
-- Issue #6943: Use pkg-config to find the libffi headers when the
- --with-system-ffi flag is used.
-
-- Issue #7609: Add a --with-system-expat option that causes the system's expat
- library to be used for the pyexpat module instead of the one included with
- Python.
-
-- Issue #7589: Only build the nis module when the correct header files are
- found.
-
-- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
-
-- Issue #5792: Extend the short float repr support to x86 systems using
- icc or suncc.
-
-- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it compiles
- correctly under gcc on x86-64. This fixes a reported problem with the
- --with-tsc build on x86-64.
-
-- Issue #6802: Fix build issues on MacOSX 10.6.
-
-- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
-
-- Issue #4601: 'make install' did not set the appropriate permissions on
- directories.
-
-- Issue #5390: Add uninstall icon independent of whether file extensions are
- installed.
-
-- Issue #7541: When using ``python-config`` with a framework install the
- compiler might use the wrong library.
-
-- python-config now supports multiple options on the same command line.
-
-- Issue #8509: Fix quoting in help strings and code snippets in configure.in.
-
-- Issue #8510: Update to autoconf2.65.
-
-Documentation
--------------
-
-- Issue #9817: Add expat COPYING file; add expat, libffi and expat licenses
- to Doc/license.rst.
-
-- Issue #9524: Document that two CTRL* signals are meant for use only
- with os.kill.
-
-- Issue #9255: Document that the 'test' package is meant for internal Python use
- only.
-
-- A small WSGI server was added as Tools/scripts/serve.py, and is used to
- implement a local documentation server via 'make serve' in the doc directory.
-
-- Updating `Using Python` documentation to include description of CPython's -J
- and -X options.
-
-- Document that importing a module that has None in sys.modules triggers an
- ImportError.
-
-- Issue #6556: Fixed the Distutils configuration files location explanation for
- Windows.
-
-- Update python manual page (options -B, -O0, -s, environment variables
- PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
-
-- Issue #8909: Added the size of the bitmap used in the installer created by
- distutils' bdist_wininst. Patch by Anatoly Techtonik.
-
-Tests
------
-
-- Issue #9251: test_threaded_import didn't fail when run through regrtest if the
- import lock was disabled.
-
-- Issue #8605: Skip test_gdb if Python is compiled with optimizations.
-
-- Issue #7449: Skip test_socketserver if threading support is disabled.
-
-- Issue #8672: Add a zlib test ensuring that an incomplete stream can be handled
- by a decompressor object without errors (it returns incomplete uncompressed
- data).
-
-- Issue #8533: regrtest uses backslashreplace error handler for stdout to avoid
- UnicodeEncodeError (write non-ASCII character to stdout using ASCII encoding).
-
-- Issue #8576: Remove use of find_unused_port() in test_smtplib and
- test_multiprocessing. Patch by Paul Moore.
-
-- Issue #7449: Fix many tests to support Python compiled without thread
- support. Patches written by Jerry Seutter.
-
-- Issue #8108: test_ftplib's non-blocking SSL server now has proper handling of
- SSL shutdowns.
-
-- Issues #8279, #8330, #8437, #8480, #8495: Fix test_gdb failures, patch written
- by Dave Malcolm.
-
-- Issue #3864: Skip three test_signal tests on freebsd6 because they fail if any
- thread was previously started, most likely due to a platform bug.
-
-- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
-
-- Issue #8248: Add some tests for the bool type. Patch by Gregory Nofi.
-
-- Issue #8263: Now regrtest.py will report a failure if it receives a
- KeyboardInterrupt (SIGINT).
-
-- Issue #8180 and #8207: Fix test_pep277 on OS X and add more tests for special
- Unicode normalization cases.
-
-- Issue #7783: test.support.open_urlresource invalidates the outdated files from
- the local cache.
-
-- Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
- effectively raised.
-
-- The four path modules (genericpath, macpath, ntpath, posixpath) share a common
- TestCase for some tests: test_genericpath.CommonTest.
-
-- Print platform information when running the whole test suite, or using the
- --verbose flag.
-
-- Issue #767675: enable test_pep277 on POSIX platforms with Unicode-friendly
- filesystem encoding.
-
-- Issue #6292: for the moment at least, the test suite runs cleanly if python is
- run with the -OO flag. Tests requiring docstrings are skipped.
-
-- Issue #7712: test.support gained a new `temp_cwd` context manager which is now
- also used by regrtest to run all the tests in a temporary directory. The
- original CWD is saved in `support.SAVEDCWD`. Thanks to Florent Xicluna who
- helped with the patch.
-
-- Issue #7924: Fix an intermittent 'XXX undetected error' failure in test_capi
- (only seen so far on platforms where the curses module wasn't built), due to
- an uncleared exception.
-
-- Issue #7728: test_timeout was changed to use support.bind_port instead of a
- hard coded port.
-
-- Issue #7376: Instead of running a self-test (which was failing) when called
- with no arguments, doctest.py now gives a usage message.
-
-- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
-
-- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
- instead of a hardcoded port number in test_rapid_restart.
-
-- Issue #7431: Use TESTFN in test_linecache instead of trying to create a file
- in the Lib/test directory, which might be read-only for the user running the
- tests.
-
-- Issue #7324: Add a sanity check to regrtest argument parsing to catch the case
- of an option with no handler.
-
-- Issue #7312: Add a -F flag to run the selected tests in a loop until a test
- fails. Can be combined with -j.
-
-- Issue #6551: test_zipimport could import and then destroy some modules of the
- encodings package, which would make other tests fail further down the road
- because the internally cached encoders and decoders would point to empty
- global variables.
-
-- Issue #7295: Do not use a hardcoded file name in test_tarfile.
-
-- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
- primitives such as Lock, RLock, Condition, Event and Semaphore.
-
-- Issue #7248 (part 2): Use a unique temporary directory for importlib source
- tests instead of tempfile.tempdir. This prevents the tests from sharing state
- between concurrent executions on the same system.
-
-- Issue #7248: In importlib.test.source.util a try/finally block did not make
- sure that some referenced objects actually were created in the block before
- calling methods on the object.
-
-- Issue #7222: Make thread "reaping" more reliable so that reference
- leak-chasing test runs give sensible results. The previous method of reaping
- threads could return successfully while some Thread objects were still
- referenced. This also introduces a new private function:
- ``_thread._count()``.
-
-- Issue #7151: Fixed regrtest -j so that output to stderr from a test no longer
- runs the risk of causing the worker thread to fail.
-
-- Issue #7055: test___all__ now greedily detects all modules which have an
- __all__ attribute, rather than using a hardcoded and incomplete list.
-
-- Issue #7058: Added save/restore for things like sys.argv and cwd to
- runtest_inner in regrtest, with warnings if the called test modifies them, and
- a new section in the summary report at the end.
-
-- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
-
-- Fixed tests in importlib.test.source.test_abc_loader that were masking the
- proper exceptions that should be raised for missing or improper code object
- bytecode.
-
-- Removed importlib's custom test discovery code and switched to
- unittest.TestLoader.discover().
-
-Tools/Demos
------------
-
-- Issue #5464, #8974: Implement plural forms in msgfmt.py.
-
-- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
- added to the `Tools/` directory. They were previously living in the sandbox.
-
-
-What's New in Python 3.1?
-=========================
-
-*Release date: 27-June-2009*
-
-Core and Builtins
------------------
-
-- Issue #6334: Fix bug in range length calculation for ranges with
- large arguments.
-
-- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
- because it wasn't recognized as a sequence).
-
-Library
--------
-
-- Issue #6126: Fixed pdb command-line usage.
-
-- Issue #6314: logging: performs extra checks on the "level" argument.
-
-- Issue #6274: Fixed possible file descriptors leak in subprocess.py
-
-- Accessing io.StringIO.buffer now raises an AttributeError instead of
- io.UnsupportedOperation.
-
-- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
- (On Unix)
-
-- Issue #1202: zipfile module would cause a struct.error when attempting to
- store files with a CRC32 > 2**31-1.
-
-Extension Modules
------------------
-
-- Issue #5590: Remove unused global variable in pyexpat extension.
-
-
-What's New in Python 3.1 Release Candidate 2?
-=============================================
-
-*Release date: 13-June-2009*
-
-Core and Builtins
------------------
-
-- Fixed SystemError triggered by "range([], 1, -1)".
-
-- Issue #5924: On Windows, a large PYTHONPATH environment variable
- (more than 255 characters) would be completely ignored.
-
-- Issue #4547: When debugging a very large function, it was not always
- possible to update the lineno attribute of the current frame.
-
-- Issue #5330: C functions called with keyword arguments were not reported by
- the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
-
-Library
--------
-
-- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
- expression string pattern was trying to match against a bytes returned by
- Popen. Tested under win32 to build the py-postgresql project.
-
-- Issue #6258: Support AMD64 in bdist_msi.
-
-- Issue #6195: fixed doctest to no longer try to read 'source' data from
- binary files.
-
-- Issue #5262: Fixed bug in next rollover time computation in
- TimedRotatingFileHandler.
-
-- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
- errors property. Additionally, the errors and encoding properties of StringIO
- are always None now.
-
-- Issue #6137: The pickle module now translates module names when loading
- or dumping pickles with a 2.x-compatible protocol, in order to make data
- sharing and migration easier. This behaviour can be disabled using the
- new `fix_imports` optional argument.
-
-- Removed the ipaddr module.
-
-- Issue #3613: base64.{encode,decode}string are now called
- base64.{encode,decode}bytes which reflects what type they accept and return.
- The old names are still there as deprecated aliases.
-
-- Issue #5767: Remove sgmlop support from xmlrpc.client.
-
-- Issue #6150: Fix test_unicode on wide-unicode builds.
-
-- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
- parameters.
-
-Windows
--------
-
-- Issue #6221: Delete test registry key before running the test.
-
-- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
-
-C-API
------
-
-- Issue #5735: Python compiled with --with-pydebug should throw an
- ImportError when trying to import modules compiled without
- --with-pydebug, and vice-versa.
-
-
-Build
------
-
-- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
- added LIBS to OS X framework builds.
-
-- Issue #5809: Specifying both --enable-framework and --enable-shared is
- an error. Configure now explicity tells you about this.
-
-
-
-What's New in Python 3.1 release candidate 1?
-=============================================
-
-*Release date: 2009-05-30*
-
-Core and Builtins
------------------
-
-- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
- of the command line.
-
-- Issue #6012: Add cleanup support to O& argument parsing.
-
-- Issue #6089: Fixed str.format with certain invalid field specifiers
- that would raise SystemError.
-
-- Issue #5982: staticmethod and classmethod now expose the wrapped
- function with __func__.
-
-- Added support for multiple context managers in the same with-statement.
- Deprecated contextlib.nested() which is no longer needed.
-
-- Issue #5829: complex("1e500") no longer raises OverflowError. This
- makes it consistent with float("1e500") and interpretation of real
- and imaginary literals.
-
-- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
-
-- Issue #5994: the marshal module now has docstrings.
-
-- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
- (1) inf and nan strings with trailing whitespace were incorrectly
- rejected; (2) parsing of strings representing infinities and nans
- was locale aware; and (3) the interpretation of fromhex('-nan')
- didn't match that of float('-nan').
-
-Library
--------
-
-- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
-
-- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
-
-- Issue #6121: pydoc now ignores leading and trailing spaces in the
- argument to the 'help' function.
-
-- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
- arguments for strings with a space in them.
-
-- collections.namedtuple() was not working with the following field
- names: cls, self, tuple, itemgetter, and property.
-
-- In unittest, using a skipping decorator on a class is now equivalent to
- skipping every test on the class. The ClassTestSuite class has been removed.
-
-- Issue #6050: Don't fail extracting a directory from a zipfile if
- the directory already exists.
-
-- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
- than an int, which makes some operations possible under 64-bit Linux (e.g.
- DN_MULTISHOT with F_NOTIFY).
-
-- Issue #5761: Add the name of the underlying file to the repr() of various
- IO objects.
-
-- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
- by Musashi Tamura, tests by Marcin Bachry.
-
-- Issue #1983: Fix functions taking or returning a process identifier to use
- the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
- a process identifier type wider than the standard C integer type.
-
-- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
- Patch by Farhan Ahmad, test by Marcin Bachry.
-
-- Issue #2116: Weak references and weak dictionaries now support copy()ing and
- deepcopy()ing.
-
-- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
-
-- Issue #5918: Fix a crash in the parser module.
-
-- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
-
-- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
- library. This means, for example, that opening an UTF-16 text file in
- append mode doesn't add a BOM at the end of the file if the file isn't
- empty.
-
-- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
- file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
- corrects a pydoc regression.
-
-- Issue #5955: aifc's close method did not close the file it wrapped,
- now it does. This also means getfp method now returns the real fp.
-
-Installation
-------------
-
-- Issue #6047: fullinstall has been removed because Python 3's executable will
- now be known as python3.
-
-- Lib/smtpd.py is no longer installed as a script.
-
-Extension Modules
------------------
-
-- Issue #3061: Use wcsftime for time.strftime where available.
-
-- Issue #4873: Fix resource leaks in error cases of pwd and grp.
-
-- Issue #6093: Fix off-by-one error in locale.strxfrm.
-
-- The _functools and _locale modules are now built into the libpython shared
- library instead of as extension modules.
-
-Build
------
-
-- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
- and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
- Clinton Roy.
-
-Tests
------
-
-- Issue #5442: Tests for importlib were not properly skipping case-sensitivity
- tests on darwin even when the OS was installed on a case-sensitive
- filesystem. Also fixed tests that should not be run when
- sys.dont_write_bytecode is true.
-
-
-What's New in Python 3.1 beta 1?
-================================
-
-*Release date: 2009-05-06*
-
-Core and Builtins
------------------
-
-- Issue #5914: Add new C API function PyOS_string_to_double, and
- deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
-
-- Issue #3382: float.__format__, complex.__format__, and %-formatting
- no longer map 'F' to 'f'. Because of issue #5859 (below), this only
- affects nan -> NAN and inf -> INF.
-
-- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
- in all operations, including splitdrive, split, etc. splitunc() now issues
- a PendingDeprecation warning.
-
-- Issue #5920: For float.__format__, change the behavior with the
- empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
- to be like 'g' but with at least one decimal point and with a
- default precision of 12. Previously, the behavior the same but with
- a default precision of 6. This more closely matches str(), and
- reduces surprises when adding alignment flags to the empty
- presentation type. This also affects the new complex.__format__ in
- the same way.
-
-- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
-
-- Issue #5890: in subclasses of 'property' the __doc__ attribute was
- shadowed by classtype's, even if it was None. property now
- inserts the __doc__ into the subclass instance __dict__.
-
-- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
- sequences. Patch by Nick Barnes and Victor Stinner.
-
-- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
-
-- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
- received a new method, detach(). detach() disconnects the underlying stream
- from the buffer or text IO and returns it.
-
-- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
- floats with absolute value over 1e50. Also remove length
- restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
- 12.34 no longer raise an exception.
-
-- Issue #1588: Add complex.__format__. For example,
- format(complex(1, 2./3), '.5') now produces a sensible result.
-
-- Issue #5864: Fix empty format code formatting for floats so that it
- never gives more than the requested number of significant digits.
-
-- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
- new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
-
-- Issue #5835: Deprecate PyOS_ascii_formatd.
-
-- Issue #4971: Fix titlecase for characters that are their own
- titlecase, but not their own uppercase.
-
-- Issue #5283: Setting __class__ in __del__ caused a segfault.
-
-- Issue #5816: complex(repr(z)) now recovers z exactly, even when
- z involves nans, infs or negative zeros.
-
-- Issue #3166: Make int -> float conversions correctly rounded.
-
-- Issue #1869 (and many duplicates): make round(x, n) correctly
- rounded for a float x, by using the decimal <-> binary conversions
- from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
- consistently agrees with format(x, '.2f').
-
-- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
- some builtin types.
-
-- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
-
-- Issue #5515: str.format() type 'n' combined with commas and leading
- zeros no longer gives odd results with ints and floats.
-
-- Implement PEP 378, Format Specifier for Thousands Separator, for
- floats.
-
-- The str function switches to exponential notation at
- 1e11, not 1e12. This avoids printing 13 significant digits in
- situations where only 12 of them are correct. Example problem
- value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
- long time.)
-
-- Issue #1580: On most platforms, use a 'short' float repr: for a
- finite float x, repr(x) now outputs a string based on the shortest
- sequence of decimal digits that rounds to x. Previous behaviour was
- to output 17 significant digits and then strip trailing zeros.
- Another minor difference is that the new repr switches to
- exponential notation at 1e16 instead of the previous 1e17; this
- avoids misleading output in some cases.
-
- There's a new sys attribute sys.float_repr_style, which takes
- the value 'short' to indicate that we're using short float repr,
- and 'legacy' if the short float repr isn't available for one
- reason or another.
-
- The float repr change involves incorporating David Gay's 'perfect
- rounding' code into the Python core (it's in Python/dtoa.c). As a
- secondary consequence, all string-to-float and float-to-string
- conversions (including all float formatting operations) will be
- correctly rounded on these platforms.
-
- See issue #1580 discussions for details of platforms for which
- this change does not apply.
-
-- Issue #5759: float() didn't call __float__ on str subclasses.
-
-- The string.maketrans() function is deprecated; there is a new static method
- maketrans() on the bytes and bytearray classes. This removes confusion about
- the types string.maketrans() is supposed to work with, and mirrors the
- methods available on the str class.
-
-- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
- its clarity and its speed.
-
-- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add ``do { ... } while (0)``
- to avoid compiler warnings.
-
-- Issue #3739: The unicode-internal encoder now reports the number of characters
- consumed like any other encoder (instead of the number of bytes).
-
-Installation
-------------
-
-- Issue #5756: Install idle and pydoc with a 3 suffix.
-
-Library
--------
-
-- Issue #8203: Fix IDLE Credits dialog: view_file() uses its encoding argument.
-
-- Issue #5311: bdist_msi can now build packages that do not depend on a
- specific Python version.
-
-- Issue #5150: IDLE's format menu now has an option to strip trailing
- whitespace.
-
-- Issue #5940: distutils.command.build_clib.check_library_list was not doing
- the right type checkings anymore.
-
-- Issue #4875: On win32, ctypes.util.find_library does no longer
- return directories.
-
-- Issue #5142: Add the ability to skip modules while stepping to pdb.
-
-- Issue #1309567: Fix linecache behavior of stripping subdirectories when
- looking for files given by a relative filename.
-
-- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
- turtle demos in Demo/turtle.
-
-- Issue #5692: In ``zipfile.Zipfile``, fix wrong path calculation when
- extracting a file to the root directory.
-
-- Issue #5913: os.listdir() should fail for empty path on windows.
-
-- Issue #5084: unpickling now interns the attribute names of pickled objects,
- saving memory and avoiding growth in size of subsequent pickles. Proposal
- and original patch by Jake McGuire.
-
-- The json module now works exclusively with str and not bytes.
-
-- Issue #3959: The ipaddr module has been added to the standard library.
- Contributed by Google.
-
-- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
- error when a named pipe is encountered, rather than blocking infinitely.
-
-- Issue #5857: tokenize.tokenize() now returns named tuples.
-
-- Issue #4305: ctypes should now build again on mipsel-linux-gnu
-
-- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
- string is already in normalized form, by performing a quick check beforehand.
- Original patch by Rauli Ruohonen.
-
-- Issue #5853: calling a function of the mimetypes module from several threads
- at once could hit the recursion limit if the mimetypes database hadn't been
- initialized before.
-
-- Issue #5854: Updated __all__ to include some missing names and remove some
- names which should not be exported.
-
-- Issue #3102: All global symbols that the _ctypes extension defines
- are now prefixed with 'Py' or '_ctypes'.
-
-- Issue #5041: ctypes does now allow pickling wide character.
-
-- Issue #5812: For the two-argument form of the Fraction constructor,
- Fraction(m, n), m and n are permitted to be arbitrary Rational
- instances.
-
-- Issue #5812: Fraction('1e6') is valid: more generally, any string
- that's valid for float() is now valid for Fraction(), with the
- exception of strings representing NaNs and infinities.
-
-- Issue #5734: BufferedRWPair was poorly tested and had several glaring
- bugs. Patch by Brian Quinlan.
-
-- Issue #1161031: fix readwrite select flag handling: POLLPRI now
- results in a handle_expt_event call, not handle_read_event, and POLLERR
- and POLLNVAL now call handle_close, not handle_expt_event. Also,
- dispatcher now has an 'ignore_log_types' attribute for suppressing
- log messages, which is set to 'warning' by default.
-
-- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
- new arguments introduced in 2.5.
-
-- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
- makeunicodedata.py and regenerated the Unicode database (This fixes
- u'\u1d79'.lower() == '\x00').
-
-Extension Modules
------------------
-
-- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
- pwd.
-
-- Issue #5463: In struct module, remove deprecated float coercion
- for integer type codes: struct.pack('L', 0.3) should now raise
- an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
- The version number has been bumped to 0.3.
-
-- Issue #5359: Readd the Berkeley DB detection code to allow _dbm be built
- using Berkeley DB.
-
-Tests
------
-
-- Issue #5354: New test support function import_fresh_module() makes
- it easy to import both normal and optimised versions of modules.
- test_heapq and test_warnings have been adjusted to use it, tests for
- other modules with both C and Python implementations in the stdlib
- can be adjusted to use it over time.
-
-- Issue #5837: Certain sequences of calls to set() and unset() for
- support.EnvironmentVarGuard objects restored the environment variables
- incorrectly on __exit__.
-
-C-API
------
-
-- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
-
-
-What's New in Python 3.1 alpha 2?
-=================================
-
-*Release date: 2009-4-4*
-
-Core and Builtins
------------------
-
-- Implement PEP 378, Format Specifier for Thousands Separator, for
- integers.
-
-- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
-
-- Issue #5499: The 'c' code for argument parsing functions now only accepts a
- byte, and the 'C' code only accepts a unicode character.
-
-- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
- when hitting the recursion limit under certain circumstances.
-
-- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
-
-- Fix a segfault when running test_exceptions with coverage, caused by
- insufficient checks in accessors of Exception.__context__.
-
-- Issue #5604: non-ASCII characters in module name passed to
- imp.find_module() were converted to UTF-8 while the path is
- converted to the default filesystem encoding, causing nonsense.
-
-- Issue #5126: str.isprintable() returned False for space characters.
-
-- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
- the end sys.path, for compatibility with the system install of Python.
-
-- Issue #4688: Add a heuristic so that tuples and dicts containing only
- untrackable objects are not tracked by the garbage collector. This can
- reduce the size of collections and therefore the garbage collection overhead
- on long-running programs, depending on their particular use of datatypes.
-
-- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
- improve its performance. Long divisions and remainder operations
- are now between 50% and 150% faster.
-
-- Issue #4258: Make it possible to use base 2**30 instead of base
- 2**15 for the internal representation of integers, for performance
- reasons. Base 2**30 is enabled by default on 64-bit machines. Add
- --enable-big-digits option to configure, which overrides the
- default. Add sys.int_info structseq to provide information about
- the internal format.
-
-- Issue #4474: PyUnicode_FromWideChar now converts characters outside
- the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
- and sizeof(Py_UNICODE) == 2.
-
-- Issue #5237: Allow auto-numbered fields in str.format(). For
- example: '{} {}'.format(1, 2) == '1 2'.
-
-- Issue #5392: when a very low recursion limit was set, the interpreter would
- abort with a fatal error after the recursion limit was hit twice.
-
-- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
- short file names.
-
-Library
--------
-
-- Issue #2625: added missing items() call to the for loop in
- mailbox.MH.get_message().
-
-- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
- error substitutions from non-strict codec error callbacks in
- incrementalencoder and StreamWriter.
-
-- Issue #5656: Fix the coverage reporting when running the test suite with
- the -T argument.
-
-- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
-
-- Issue #5624: Fix the _winreg module name still used in several modules.
-
-- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
-
-- Issue #5619: Multiprocessing children disobey the debug flag and causes
- popups on windows buildbots. Patch applied to work around this issue.
-
-- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
-
-- Issue #5387: Fixed mmap.move crash by integer overflow.
-
-- Issue #5261: Patch multiprocessing's semaphore.c to support context
- manager use: "with multiprocessing.Lock()" works now.
-
-- Issue #5236: Change time.strptime() to only take strings. Didn't work with
- bytes already but the failure was non-obvious.
-
-- Issue #5177: Multiprocessing's SocketListener class now uses
- socket.SO_REUSEADDR on all connections so that the user no longer needs
- to wait 120 seconds for the socket to expire.
-
-- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
-
-- Issue #1174606: Calling read() without arguments of an unbounded file
- (typically /dev/zero under Unix) could crash the interpreter.
-
-- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
- io.BufferedRandom have been deprecated for removal in Python 3.2.
-
-- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
- forever on incomplete input. That caused tarfile.open() to hang when used
- with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
- partial bzip2 compressed data.
-
-- Issue #2110: Add support for thousands separator and 'n' type
- specifier to Decimal.__format__
-
-- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
- '>' alignment characters.
-
-- The error detection code in FileIO.close() could fail to reflect the `errno`
- value, and report it as -1 instead.
-
-- Issue #5016: FileIO.seekable() could return False if the file position
- was negative when truncated to a C int. Patch by Victor Stinner.
-
-Extension Modules
------------------
-
-- Issue #5391: mmap now deals exclusively with bytes.
-
-- Issue #5463: In struct module, remove deprecated overflow wrapping
- when packing an integer: struct.pack('=L', -1) now raises
- struct.error instead of returning b'\xff\xff\xff\xff'. The
- _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
- have been removed from the struct module.
-
-
-What's New in Python 3.1 alpha 1
-================================
-
-*Release date: 2009-03-07*
-
-Core and Builtins
------------------
-
-- The io module has been reimplemented in C for speed.
-
-- Give dict views an informative __repr__.
-
-- Issue #5247: Improve error message when unknown format codes are
- used when using str.format() with str, int, and float arguments.
-
-- Issue #5249: time.strftime returned malformed string when format string
- contained non ascii character on windows.
-
-- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
- source has already been decoded into str.
-
-- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
- rotating the object pointer by 4 bits to the right.
-
-- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
- it now forces its argument to double before testing for infinity.
-
-- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
- returns a non-number type.
-
-- Issue #5182: Removed memoryview.__str__.
-
-- Issue #1717: Removed builtin cmp() function, dropped tp_compare
- slot, the C API functions PyObject_Compare and PyUnicode_Compare and
- the type definition cmpfunc. The tp_compare slot has been renamed
- to tp_reserved, and is reserved for future usage.
-
-- Issue #1242657: the __len__() and __length_hint__() calls in several tools
- were suppressing all exceptions. These include list() and bytearray().
-
-- Issue #4707: round(x, n) now returns an integer if x is an integer.
- Previously it returned a float.
-
-- Issue #4753: By enabling a configure option named '--with-computed-gotos'
- on compilers that support it (notably: gcc, SunPro, icc), the bytecode
- evaluation loop is compiled with a new dispatch mechanism which gives
- speedups of up to 20%, depending on the system, on various benchmarks.
-
-- Issue #4874: Most builtin decoders now reject unicode input.
-
-- Issue #4842: Don't allow trailing 'L' when constructing an integer
- from a string.
-
-- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
-
-- Issue #4838: When a module is deallocated, free the memory backing the
- optional module state data.
-
-- Issue #4910: Rename nb_long slot to nb_reserved, and change its
- type to ``(void *)``.
-
-- Issue #4935: The overflow checking code in the expandtabs() method common
- to str, bytes and bytearray could be optimized away by the compiler, letting
- the interpreter segfault instead of raising an error.
-
-- Issue #3720: Fix a crash when an iterator modifies its class and removes its
- __next__ method.
-
-- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
- function no longer attempt to call the __long__ slot to convert an object
- to an integer. Only the __int__ and __trunc__ slots are examined.
-
-- Issue #4893: Use NT threading on CE.
-
-- Issue #4915: Port sysmodule to Windows CE.
-
-- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
- common cases are optimized thanks to a dedicated fast path and a moderate
- amount of loop unrolling.
-
-- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
- collecting the oldest generation) so that allocating lots of objects without
- destroying them does not show quadratic performance. Based on a proposal by
- Martin von Löwis at
- http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
-
-- Issue #4604: Some objects of the I/O library could still be used after
- having been closed (for instance, a read() call could return some
- previously buffered data). Patch by Dmitry Vasiliev.
-
-- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
- flag to work properly. Furthermore, when specifying -u, the text stdout
- and stderr streams have line-by-line buffering enabled (the default being
- to buffer arbitrary chunks of data).
-
-- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
- instead of ints (reducing its size from 4 to 8 times thereby reducing
- Python's overall memory).
-
-- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
- an existing .py counterpart, override the co_filename attributes of all
- code objects if the original filename is obsolete (which can happen if the
- file has been renamed, moved, or if it is accessed through different paths).
- Patch by Ziga Seilnacht and Jean-Paul Calderone.
-
-- Issue #4580: Fix slicing of memoryviews when the item size is greater than
- one byte. Also fixes the meaning of len() so that it returns the number of
- items, rather than the size in bytes.
-
-- Issue #4075: Use OutputDebugStringW in Py_FatalError.
-
-- Issue #4747: When the terminal does not use utf-8, executing a script with
- non-ascii characters in its name could fail with a "SyntaxError: None" error.
-
-- Issue #4797: IOError.filename was not set when ``_fileio.FileIO`` failed
- to open file with a bytes filename on Windows.
-
-- Issue #3680: Reference cycles created through a dict, set or deque iterator
- did not get collected.
-
-- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
- where the tp_hash and tp_dict slots are both NULL.
-
-- Issue #4759: None is now allowed as the first argument of
- bytearray.translate(). It was always allowed for bytes.translate().
-
-- Added test case to ensure attempts to read from a file opened for writing
- fail.
-
-- Issue #3106: Speedup some comparisons (str/str and int/int).
-
-- Issue #2183: Simplify and optimize bytecode for list, dict and set
- comprehensions. Original patch for list comprehensions by Neal Norwitz.
-
-- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
- print elapsed times, not only when some objects are uncollectable /
- unreachable. Original patch by Neil Schemenauer.
-
-- Issue #3439: Add a bit_length method to int.
-
-- Issue #2173: When getting device encoding, check that return value of
- nl_langinfo is not the empty string. This was causing silent build
- failures on OS X.
-
-- Issue #4597: Fixed several opcodes that weren't always propagating
- exceptions.
-
-- Issue #4589: Fixed exception handling when the __exit__ function of a
- context manager returns a value that cannot be converted to a bool.
-
-- Issue #4445: Replace "sizeof(PyBytesObject)" with
- "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
- bytes instances. On a typical machine this saves 3 bytes of memory
- (on average) per allocation of a bytes instance.
-
-- Issue #4533: File read operation was dreadfully slow due to a slowly
- growing read buffer. Fixed by using the same growth rate algorithm as
- Python 2.x.
-
-- Issue #4509: Various issues surrounding resize of bytearray objects to
- which there are buffer exports (e.g. memoryview instances).
-
-- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
- method on file objects with closefd=False. The file descriptor is still
- kept open but the file object behaves like a closed file. The ``FileIO``
- object also got a new readonly attribute ``closefd``.
-
-- Issue #4569: Interpreter crash when mutating a memoryview with an item size
- larger than 1.
-
-- Issue #4748: Lambda generators no longer return a value.
-
-- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
-
-- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
- PyUnicode_DecodeUTF8() once, remember the result and output it in a second
- step. This avoids problems with counting UTF-8 bytes that ignores the effect
- of using the replace error handler in PyUnicode_DecodeUTF8().
-
-Library
--------
-
-- Issue #7071: byte-compilation in Distutils is now done with respect to
- sys.dont_write_bytecode.
-
-- Issue #7066: archive_util.make_archive now restores the cwd if an error is
- raised. Initial patch by Ezio Melotti.
-
-- Issue #6516: Added owner/group support when creating tar archives in
- Distutils.
-
-- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
-
-- Issue #6163: Fixed HP-UX runtime library dir options in
- distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
- Michael Haubenwallner.
-
-- Issue #6693: New functions in site.py to get user/global site packages paths.
-
-- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
- opening an empty or very small file.
-
-- Issue #6545: Removed assert statements in distutils.Extension, so the
- behavior is similar when used with -O.
-
-- unittest has been split up into a package. All old names should still work.
-
-- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
- uses the same refactored function to get gcc/ld/dllwrap versions numbers.
- It's `distutils.util.get_compiler_versions`. Added deprecation warnings
- for the obsolete get_versions() functions.
-
-- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
-
-- Issue #6314: logging: Extra checks on the "level" argument in more places.
-
-- Issue #2622: Fixed an ImportError when importing email.message from a
- standalone application built with py2exe or py2app.
-
-- Issue #6455: Fixed test_build_ext under win32.
-
-- Issue #6377: Enabled the compiler option, and deprecate its usage as an
- attribute.
-
-- Issue #6413: Fixed the log level in distutils.dist for announce.
-
-- Issue #6403: Fixed package path usage in build_ext.
-
-- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
- unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
- descriptor errors
-
-- Issue #6365: Distutils build_ext inplace mode was copying the compiled
- extension in a subdirectory if the extension name had dots.
-
-- Issue #6164: Added an AIX specific linker argument in Distutils
- unixcompiler. Original patch by Sridhar Ratnakumar.
-
-- Issue #6286: Now Distutils upload command is based on urllib2 instead of
- httplib, allowing the usage of http_proxy.
-
-- Issue #6287: Added the license field in Distutils documentation.
-
-- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
-
-- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
- in Makefiles. This prevents compile errors when using syntax like:
- `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
-
-- Issue #6131: test_modulefinder leaked when run after test_distutils.
- Patch by Hirokazu Yamamoto.
-
-- Issue #6048: Now Distutils uses the tarfile module in archive_util.
-
-- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
- and tests on pywin32 by Tim Golden.
-
-- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
-
-- Issue #6046: Fixed the library extension when distutils build_ext is used
- inplace. Initial patch by Roumen Petrov.
-
-- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
- subcommand.
-
-- Issue #6022: a test file was created in the current working directory by
- test_get_outputs in Distutils.
-
-- Issue #5977: distutils build_ext.get_outputs was not taking into account the
- inplace option. Initial patch by kxroberto.
-
-- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
- for old-style extensions.
-
-- Issue #5976: Fixed Distutils test_check_environ.
-
-- Issue #5941: Distutils build_clib command was not working anymore because
- of an incomplete costumization of the archiver command. Added ARFLAGS in the
- Makefile besides AR and make Distutils use it. Original patch by David
- Cournapeau.
-
-- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
-
-- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
- anymore.
-
-- Issue #5810: Fixed Distutils test_build_scripts so it uses
- sysconfig.get_config_vars.
-
-- Issue #4951: Fixed failure in test_httpservers.
-
-- Issue #5795: Fixed test_distutils failure on Debian ppc.
-
-- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
-
-- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
- a value in SafeConfigParser.
-
-- Issue #5732: added a new command in Distutils: check.
-
-- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
- platforms. Initial patch by Paul Moore.
-
-- Issue #5095: Added bdist_msi to the list of bdist supported formats.
- Initial fix by Steven Bethard.
-
-- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
- Initial fix by Wayne Davison.
-
-- Issue #5694: removed spurious test output in Distutils (test_clean).
-
-- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
-
-- Issue #1665206 (partially): Move imports in cgitb to the top of the module
- instead of performing them in functions. Helps prevent import deadlocking in
- threads.
-
-- Issue #2522: locale.format now checks its first argument to ensure it has
- been passed only one pattern, avoiding mysterious errors where it appeared
- that it was failing to do localization.
-
-- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
- Brandl.
-
-- Issue #1222: locale.format() bug when the thousands separator is a space
- character.
-
-- Issue #5472: Fixed distutils.test_util tear down. Original patch by
- Tim Golden.
-
-- collections.deque() objects now have a read-only attribute called maxlen.
-
-- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
- it is has been populated and properly configured in order to prevent
- window flashing.
-
-- Issue #4792: Prevent a segfault in _tkinter by using the
- guaranteed to be safe interp argument given to the PythonCmd in place of
- the Tcl interpreter taken from a PythonCmd_ClientData.
-
-- Issue #5193: Guarantee that tkinter.Text.search returns a string.
-
-- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
- Original patch by Akira Kitada.
-
-- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
-
-- Issue #5385: Fixed mmap crash after resize failure on windows.
-
-- Issue #5179: Fixed subprocess handle leak on failure on windows.
-
-- PEP 372: Added collections.OrderedDict().
-
-- The _asdict() for method for namedtuples now returns an OrderedDict().
-
-- configparser now defaults to using an ordered dictionary.
-
-- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
- import guess_extension`` was used.
-
-- Issue #1733986: Fixed mmap crash in accessing elements of second map object
- with same tagname but larger size than first map. (Windows)
-
-- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
- overrun.
-
-- Issue #1533164: Installed but not listed ``*.pyo`` was breaking Distutils
- bdist_rpm command.
-
-- Issue #5378: added --quiet option to Distutils bdist_rpm command.
-
-- Issue #5052: make Distutils compatible with 2.3 again.
-
-- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
- in Distutils tests.
-
-- Issue #5287: Add exception handling around findCaller() call to help out
- IronPython.
-
-- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
- The file was resized to wrong size.
-
-- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
-
-- Issue #2279: distutils.sdist.add_defaults now add files
- from the package_data and the data_files metadata.
-
-- Issue #5257: refactored all tests in distutils, so they use
- support.TempdirManager, to avoid writing in the tests directory.
-
-- Issue #4524: distutils build_script command failed with --with-suffix=3.
- Initial patch by Amaury Forgeot d'Arc.
-
-- Issue #2461: added tests for distutils.util
-
-- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
- which inherited from numbers.py which did not have __slots__ defined. The
- numbers hierarchy now has its own __slots__ declarations.
-
-- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
- encoding.
-
-- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
- function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
-
-- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
- under NT and OS2. Patch by Philip Jenvey.
-
-- Issue #5128: Make compileall properly inspect bytecode to determine if needs
- to be recreated. This avoids a timing hole thanks to the old reliance on the
- ctime of the files involved.
-
-- Issue #5122: Synchronize tk load failure check to prevent a potential
- deadlock.
-
-- Issue #1818: collections.namedtuple() now supports a keyword argument
- 'rename' which lets invalid fieldnames be automatically converted to
- positional names in the form, _1, _2, ...
-
-- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
-
-- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
- public documented method ``ZipImporter.get_filename()``.
-
-- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
- the execution of packages by looking for and executing a ``__main__``
- submodule when a package name is supplied. Initial patch by Andi
- Vajda.
-
-- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
- not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
- Tkapp_Call when calling from a thread different than the one that created
- the Tcl interpreter. Patch by Robert Hancock.
-
-- Issue #4285: Change sys.version_info to be a named tuple. Patch by
- Ross Light.
-
-- Issue #1520877: Now distutils.sysconfig reads $AR from the
- environment/Makefile. Patch by Douglas Greiman.
-
-- Issue #1276768: The verbose option was not used in the code of
- distutils.file_util and distutils.dir_util.
-
-- Issue #5132: Fixed trouble building extensions under Solaris with
- --enabled-shared activated. Initial patch by Dave Peterson.
-
-- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
-
-- The shelve module now defaults to pickle protocol 3.
-
-- Fix a bug in the trace module where a bytes object from co_lnotab had its
- items being passed through ord().
-
-- Issue #2047: shutil.move() could believe that its destination path was
- inside its source path if it began with the same letters (e.g. "src" vs.
- "src.new").
-
-- Added the ttk module. See issue #2983: Ttk support for Tkinter.
-
-- Removed isSequenceType(), isMappingType, and isNumberType() from the
- operator module; use the abstract base classes instead. Also removed
- the repeat() function; use mul() instead.
-
-- Issue #5021: doctest.testfile() did not create __name__ and
- collections.namedtuple() relied on __name__ being defined.
-
-- Backport importlib from Python 3.1. Only the import_module() function has
- been backported to help facilitate transitions from 2.7 to 3.1.
-
-- Issue #1885: distutils. When running sdist with --formats=tar,gztar
- the tar file was overriden by the gztar one.
-
-- Issue #4863: distutils.mwerkscompiler has been removed.
-
-- Added a new itertools functions: combinations_with_replacement()
- and compress().
-
-- Issue #5032: added a step argument to itertools.count() and
- allowed non-integer arguments.
-
-- Fix and properly document the multiprocessing module's logging
- support, expose the internal levels and provide proper usage
- examples.
-
-- Issue #1672332: fix unpickling of subnormal floats, which was
- producing a ValueError on some platforms.
-
-- Issue #3881: Help Tcl to load even when started through the
- unreadable local symlink to "Program Files" on Vista.
-
-- Issue #4710: Extract directories properly in the zipfile module;
- allow adding directories to a zipfile.
-
-- Issue #3807: _multiprocessing build fails when configure is passed
- --without-threads argument. When this occurs, _multiprocessing will
- be disabled, and not compiled.
-
-- Issue #5008: When a file is opened in append mode with the new IO library,
- do an explicit seek to the end of file (so that e.g. tell() returns the
- file size rather than 0). This is consistent with the behaviour of the
- traditional 2.x file object.
-
-- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
- parameter was set.
-
-- Issue #4842: Always append a trailing 'L' when pickling longs using
- pickle protocol 0. When reading, the 'L' is optional.
-
-- Add the importlib package.
-
-- Issue #4301: Patch the logging module to add processName support, remove
- _check_logger_class from multiprocessing.
-
-- Issue #3325: Remove python2.x try: except: imports for old cPickle from
- multiprocessing.
-
-- Issue #4959: inspect.formatargspec now works for keyword only arguments
- without defaults.
-
-- Issue #3321: ``_multiprocessing.Connection()`` doesn't check handle; added checks
- for Unix machines for negative handles and large int handles. Without this check
- it is possible to segfault the interpreter.
-
-- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
- in sharedctypes.py.
-
-- Issue #1225107: inspect.isclass() returned True for instances with a custom
- __getattr__.
-
-- Issue #3826 and #4791: The socket module now closes the underlying socket
- appropriately when it is being used via socket.makefile() objects
- rather than delaying the close by waiting for garbage collection to do it.
-
-- Issue #1696199: Add collections.Counter() for rapid and convenient
- counting.
-
-- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
-
-- Issue #4867: Fixed a crash in ctypes when passing a string to a
- function without defining argtypes.
-
-- Issue #4272: Add an optional argument to the GzipFile constructor to override
- the timestamp in the gzip stream. The default value remains the current time.
- The information can be used by e.g. gunzip when decompressing. Patch by
- Jacques Frechet.
-
-- Restore Python 2.3 compatibility for decimal.py.
-
-- Issue #3638: Remove functions from _tkinter module level that depend on
- TkappObject to work with multiple threads.
-
-- Issue #4718: Adapt the wsgiref package so that it actually works with
- Python 3.x, in accordance with the `official amendments of the spec
- <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
-
-- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
- to the decimal module.
-
-- Fractions.from_float() no longer loses precision for integers too big to
- cast as floats.
-
-- Issue #4812: add missing underscore prefix to some internal-use-only
- constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
-
-- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
- did unnecessary work in the common case where no key function was specified.
-
-- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
- the function is not a generator.
-
-- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
- no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
-
-- Issue #4646: distutils was choking on empty options arg in the setup
- function. Original patch by Thomas Heller.
-
-- Issue #3767: Convert Tk object to string in tkColorChooser.
-
-- Issue #3248: Allow placing ScrolledText in a PanedWindow.
-
-- Issue #4444: Allow assertRaises() to be used as a context handler, so that
- the code under test can be written inline if more practical.
-
-- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
- works as expected in the interactive environment.
-
-- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
- Gabriel Genellina.
-
-- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
- boundary.
-
-- Issue #4223: inspect.getsource() will now correctly display source code
- for packages loaded via zipimport (or any other conformant PEP 302
- loader). Original patch by Alexander Belopolsky.
-
-- Issue #4201: pdb can now access and display source code loaded via
- zipimport (or any other conformant PEP 302 loader). Original patch by
- Alexander Belopolsky.
-
-- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
- 302 conformant loader) will now work correctly in most cases (they
- are still subject to the constraints that exist for all code running
- from inside a module loaded via a PEP 302 loader and attempting to
- perform IO operations based on __file__). Original patch by
- Alexander Belopolsky.
-
-- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
- allows backporting to maintenance branches. Original patch by
- Alexander Belopolsky.
-
-- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
- a non-ASCII letter.
-
-- Issue #4616: TarFile.utime(): Restore directory times on Windows.
-
-- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
- codec cannot be found. This is for compatibility with the builtin behavior.
-
-- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
- give correct results in the case where one argument is a quiet NaN
- and the other is a finite number that requires rounding.
-
-- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
- libs.
-
-- Added the subprocess.check_call_output() convenience function to get output
- from a subprocess on success or raise an exception on error.
-
-- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
- support unusual filenames (such as those containing semi-colons) in
- Content-Disposition headers.
-
-- Issue #4384: Added logging integration with warnings module using
- captureWarnings(). This change includes a NullHandler which does nothing;
- it will be of use to library developers who want to avoid the "No handlers
- could be found for logger XXX" message which can appear if the library user
- doesn't configure logging.
-
-- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
- exception.
-
-- Issue #4529: fix the parser module's validation of try-except-finally
- statements.
-
-- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
- not a malformed option.
-
-- Added the subprocess.check_output() convenience function to get output
- from a subprocess on success or raise an exception on error.
-
-- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
- the corresponding tests now pass.
-
-- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
- it was calling the wrong open() function.
-
-- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
- support unusual filenames (such as those containing semi-colons) in
- Content-Disposition headers.
-
-- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
- biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
-
-- Issue #5104: The socket module now raises OverflowError when 16-bit port and
- protocol numbers are supplied outside the allowed 0-65536 range on bind()
- and getservbyport().
-
-- Windows locale mapping updated to Vista.
-
-Tools/Demos
------------
-
-- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
- and make it 2.6-compatible.
-
-- Ttk demos added in Demo/tkinter/ttk/
-
-- Issue #4677: add two list comprehension tests to pybench.
-
-
-Build
------
-
-- Issue #6094: Build correctly with Subversion 1.7.
-
-- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
-
-- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
- linker, rather than always exit successfully. Patch by Floris Bruynooghe.
-
-- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
- the order that backends for the dbm extension are checked.
-
-- Link the shared python library with $(MODLIBS).
-
-- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
-
-- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
-
-- Issue #4895: Use _strdup on Windows CE.
-
-- Issue #4472: "configure --enable-shared" now works on OSX
-
-- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
-
-- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
-
-- Issue #4289: Remove Cancel button from AdvancedDlg.
-
-- Issue #1656675: Register a drop handler for .py* files on Windows.
-
-- Issue #4120: Exclude manifest from extension modules in VS2008.
-
-- Issue #4091: Install pythonxy.dll in system32 again.
-
-- Issue #4018: Disable "for me" installations on Vista.
-
-- Issue #3758: Add ``patchcheck`` build target to .PHONY.
-
-- Issue #4204: Fixed module build errors on FreeBSD 4.
-
-
-C-API
------
-
-- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
- NUL: Bogus TypeError detail string.
-
-- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
- for negative arguments. Previously, it raised TypeError.
-
-- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
-
-- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
- the GIL is released, or owned by another thread.
-
-- Issue #4122: On Windows, fix a compilation error when using the
- Py_UNICODE_ISSPACE macro in an extension module.
-
-
-Extension Modules
------------------
-
-- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
- supporting objects as input no matter how it was compiled (built in
- implementations or external openssl library).
-
-- Issue #4397: Fix occasional test_socket failure on OS X.
-
-- Issue #4279: Fix build of parsermodule under Cygwin.
-
-- Issue #4751: hashlib now releases the GIL when hashing large buffers
- (with a hardwired threshold of 2048 bytes), allowing better parallelization
- on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
-
-- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
-
-- Issue #4738: Each zlib object now has a separate lock, allowing to compress
- or decompress several streams at once on multi-CPU systems. Also, the GIL
- is now released when computing the CRC of a large buffer. Patch by ebfe.
-
-- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
-
-- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
-
-- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
- OpenBSD.
-
-- Issue #4583: array.array would not always prohibit resizing when a buffer
- has been exported, resulting in an interpreter crash when accessing the
- buffer.
-
-
-- Issue #5228: Make functools.partial objects can now be pickled.
-
-Tests
------
-
-- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
- regression tests in parallel, shortening the total runtime.
-
-- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
- Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
- the same behaviour as test_ttkguionly (and now also test_tk) which is to
- skip the tests if DISPLAY is defined but can't be used.
-
-- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
- that should cause a test to be skipped are now done using import_module
- from test support, which does the conversion.
-
-- Issue #5083: New 'gui' resource for regrtest.
-
-
-Docs
-----
-
-
**(For information about older versions, consult the HISTORY file.)**
--
Repository URL: http://hg.python.org/cpython
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