[pypy-svn] r54696 - pypy/dist/lib-python/modified-2.4.1
fijal at codespeak.net
fijal at codespeak.net
Tue May 13 15:00:59 CEST 2008
Author: fijal
Date: Tue May 13 15:00:55 2008
New Revision: 54696
Added:
pypy/dist/lib-python/modified-2.4.1/site.py (contents, props changed)
Log:
Re-create removed site.py from modified.
Added: pypy/dist/lib-python/modified-2.4.1/site.py
==============================================================================
--- (empty file)
+++ pypy/dist/lib-python/modified-2.4.1/site.py Tue May 13 15:00:55 2008
@@ -0,0 +1,418 @@
+"""Append module search paths for third-party packages to sys.path.
+
+****************************************************************
+* This module is automatically imported during initialization. *
+****************************************************************
+
+In earlier versions of Python (up to 1.5a3), scripts or modules that
+needed to use site-specific modules would place ``import site''
+somewhere near the top of their code. Because of the automatic
+import, this is no longer necessary (but code that does it still
+works).
+
+This will append site-specific paths to the module search path. On
+Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
+appends lib/python<version>/site-packages as well as lib/site-python.
+On other platforms (mainly Mac and Windows), it uses just sys.prefix
+(and sys.exec_prefix, if different, but this is unlikely). The
+resulting directories, if they exist, are appended to sys.path, and
+also inspected for path configuration files.
+
+A path configuration file is a file whose name has the form
+<package>.pth; its contents are additional directories (one per line)
+to be added to sys.path. Non-existing directories (or
+non-directories) are never added to sys.path; no directory is added to
+sys.path more than once. Blank lines and lines beginning with
+'#' are skipped. Lines starting with 'import' are executed.
+
+For example, suppose sys.prefix and sys.exec_prefix are set to
+/usr/local and there is a directory /usr/local/lib/python1.5/site-packages
+with three subdirectories, foo, bar and spam, and two path
+configuration files, foo.pth and bar.pth. Assume foo.pth contains the
+following:
+
+ # foo package configuration
+ foo
+ bar
+ bletch
+
+and bar.pth contains:
+
+ # bar package configuration
+ bar
+
+Then the following directories are added to sys.path, in this order:
+
+ /usr/local/lib/python1.5/site-packages/bar
+ /usr/local/lib/python1.5/site-packages/foo
+
+Note that bletch is omitted because it doesn't exist; bar precedes foo
+because bar.pth comes alphabetically before foo.pth; and spam is
+omitted because it is not mentioned in either path configuration file.
+
+After these path manipulations, an attempt is made to import a module
+named sitecustomize, which can perform arbitrary additional
+site-specific customizations. If this import fails with an
+ImportError exception, it is silently ignored.
+
+"""
+
+import sys
+import os
+import __builtin__
+
+
+def makepath(*paths):
+ dir = os.path.abspath(os.path.join(*paths))
+ return dir, os.path.normcase(dir)
+
+def abs__file__():
+ """Set all module' __file__ attribute to an absolute path"""
+ for m in sys.modules.values():
+ try:
+ prev = m.__file__
+ new = os.path.abspath(m.__file__)
+ if prev != new:
+ m.__file__ = new
+ except AttributeError:
+ continue
+
+def removeduppaths():
+ """ Remove duplicate entries from sys.path along with making them
+ absolute"""
+ # This ensures that the initial path provided by the interpreter contains
+ # only absolute pathnames, even if we're running from the build directory.
+ L = []
+ known_paths = set()
+ for dir in sys.path:
+ # Filter out duplicate paths (on case-insensitive file systems also
+ # if they only differ in case); turn relative paths into absolute
+ # paths.
+ dir, dircase = makepath(dir)
+ if not dircase in known_paths:
+ L.append(dir)
+ known_paths.add(dircase)
+ sys.path[:] = L
+ return known_paths
+
+# XXX This should not be part of site.py, since it is needed even when
+# using the -S option for Python. See http://www.python.org/sf/586680
+def addbuilddir():
+ """Append ./build/lib.<platform> in case we're running in the build dir
+ (especially for Guido :-)"""
+ from distutils.util import get_platform
+ s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
+ s = os.path.join(os.path.dirname(sys.path[-1]), s)
+ sys.path.append(s)
+
+def _init_pathinfo():
+ """Return a set containing all existing directory entries from sys.path"""
+ d = set()
+ for dir in sys.path:
+ try:
+ if os.path.isdir(dir):
+ dir, dircase = makepath(dir)
+ d.add(dircase)
+ except TypeError:
+ continue
+ return d
+
+def addpackage(sitedir, name, known_paths):
+ """Add a new path to known_paths by combining sitedir and 'name' or execute
+ sitedir if it starts with 'import'"""
+ if known_paths is None:
+ _init_pathinfo()
+ reset = 1
+ else:
+ reset = 0
+ fullname = os.path.join(sitedir, name)
+ try:
+ f = open(fullname, "rU")
+ except IOError:
+ return
+ try:
+ for line in f:
+ if line.startswith("#"):
+ continue
+ if line.startswith("import"):
+ exec line
+ continue
+ line = line.rstrip()
+ dir, dircase = makepath(sitedir, line)
+ if not dircase in known_paths and os.path.exists(dir):
+ sys.path.append(dir)
+ known_paths.add(dircase)
+ finally:
+ f.close()
+ if reset:
+ known_paths = None
+ return known_paths
+
+def addsitedir(sitedir, known_paths=None):
+ """Add 'sitedir' argument to sys.path if missing and handle .pth files in
+ 'sitedir'"""
+ if known_paths is None:
+ known_paths = _init_pathinfo()
+ reset = 1
+ else:
+ reset = 0
+ sitedir, sitedircase = makepath(sitedir)
+ if not sitedircase in known_paths:
+ sys.path.append(sitedir) # Add path component
+ try:
+ names = os.listdir(sitedir)
+ except os.error:
+ return
+ names.sort()
+ for name in names:
+ if name.endswith(os.extsep + "pth"):
+ addpackage(sitedir, name, known_paths)
+ if reset:
+ known_paths = None
+ return known_paths
+
+def addsitepackages(known_paths):
+ """Add site-packages (and possibly site-python) to sys.path"""
+ prefixes = [sys.prefix]
+ if sys.exec_prefix != sys.prefix:
+ prefixes.append(sys.exec_prefix)
+ for prefix in prefixes:
+ if prefix:
+ if sys.platform in ('os2emx', 'riscos'):
+ sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
+ elif os.sep == '/':
+ sitedirs = [os.path.join(prefix,
+ "lib",
+ "python" + sys.version[:3],
+ "site-packages"),
+ os.path.join(prefix, "lib", "site-python")]
+ else:
+ sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
+ if sys.platform == 'darwin':
+ # for framework builds *only* we add the standard Apple
+ # locations. Currently only per-user, but /Library and
+ # /Network/Library could be added too
+ if 'Python.framework' in prefix:
+ home = os.environ.get('HOME')
+ if home:
+ sitedirs.append(
+ os.path.join(home,
+ 'Library',
+ 'Python',
+ sys.version[:3],
+ 'site-packages'))
+ for sitedir in sitedirs:
+ if os.path.isdir(sitedir):
+ addsitedir(sitedir, known_paths)
+ return None
+
+
+def setBEGINLIBPATH():
+ """The OS/2 EMX port has optional extension modules that do double duty
+ as DLLs (and must use the .DLL file extension) for other extensions.
+ The library search path needs to be amended so these will be found
+ during module import. Use BEGINLIBPATH so that these are at the start
+ of the library search path.
+
+ """
+ dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
+ libpath = os.environ['BEGINLIBPATH'].split(';')
+ if libpath[-1]:
+ libpath.append(dllpath)
+ else:
+ libpath[-1] = dllpath
+ os.environ['BEGINLIBPATH'] = ';'.join(libpath)
+
+
+def setquit():
+ """Define new built-ins 'quit' and 'exit'.
+ These are simply strings that display a hint on how to exit.
+
+ """
+ if os.sep == ':':
+ exit = 'Use Cmd-Q to quit.'
+ elif os.sep == '\\':
+ exit = 'Use Ctrl-Z plus Return to exit.'
+ else:
+ exit = 'Use Ctrl-D (i.e. EOF) to exit.'
+ __builtin__.quit = __builtin__.exit = exit
+
+
+class _Printer(object):
+ """interactive prompt objects for printing the license text, a list of
+ contributors and the copyright notice."""
+
+ MAXLINES = 23
+
+ def __init__(self, name, data, files=(), dirs=()):
+ self.__name = name
+ self.__data = data
+ self.__files = files
+ self.__dirs = dirs
+ self.__lines = None
+
+ def __setup(self):
+ if self.__lines:
+ return
+ data = None
+ for dir in self.__dirs:
+ for filename in self.__files:
+ filename = os.path.join(dir, filename)
+ try:
+ fp = file(filename, "rU")
+ data = fp.read()
+ fp.close()
+ break
+ except IOError:
+ pass
+ if data:
+ break
+ if not data:
+ data = self.__data
+ self.__lines = data.split('\n')
+ self.__linecnt = len(self.__lines)
+
+ def __repr__(self):
+ self.__setup()
+ if len(self.__lines) <= self.MAXLINES:
+ return "\n".join(self.__lines)
+ else:
+ return "Type %s() to see the full %s text" % ((self.__name,)*2)
+
+ def __call__(self):
+ self.__setup()
+ prompt = 'Hit Return for more, or q (and Return) to quit: '
+ lineno = 0
+ while 1:
+ try:
+ for i in range(lineno, lineno + self.MAXLINES):
+ print self.__lines[i]
+ except IndexError:
+ break
+ else:
+ lineno += self.MAXLINES
+ key = None
+ while key is None:
+ key = raw_input(prompt)
+ if key not in ('', 'q'):
+ key = None
+ if key == 'q':
+ break
+
+##def setcopyright():
+## """Set 'copyright' and 'credits' in __builtin__"""
+## __builtin__.copyright = _Printer("copyright", sys.copyright)
+## if sys.platform[:4] == 'java':
+## __builtin__.credits = _Printer(
+## "credits",
+## "Jython is maintained by the Jython developers (www.jython.org).")
+## else:
+## __builtin__.credits = _Printer("credits", """\
+## Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
+## for supporting Python development. See www.python.org for more information.""")
+## here = os.path.dirname(os.__file__)
+## __builtin__.license = _Printer(
+## "license", "See http://www.python.org/%.3s/license.html" % sys.version,
+## ["LICENSE.txt", "LICENSE"],
+## [os.path.join(here, os.pardir), here, os.curdir])
+
+def setcopyright():
+ # XXX this is the PyPy-specific version. Should be unified with the above.
+ __builtin__.credits = _Printer(
+ "credits",
+ "PyPy is maintained by the PyPy developers: http://codespeak.net/pypy")
+ __builtin__.license = _Printer(
+ "license",
+ "See http://codespeak.net/svn/pypy/dist/LICENSE")
+
+
+class _Helper(object):
+ """Define the built-in 'help'.
+ This is a wrapper around pydoc.help (with a twist).
+
+ """
+
+ def __repr__(self):
+ return "Type help() for interactive help, " \
+ "or help(object) for help about object."
+ def __call__(self, *args, **kwds):
+ import pydoc
+ return pydoc.help(*args, **kwds)
+
+def sethelper():
+ __builtin__.help = _Helper()
+
+def aliasmbcs():
+ """On Windows, some default encodings are not provided by Python,
+ while they are always available as "mbcs" in each locale. Make
+ them usable by aliasing to "mbcs" in such a case."""
+ if sys.platform == 'win32':
+ import locale, codecs
+ enc = locale.getdefaultlocale()[1]
+ if enc is not None and enc.startswith('cp'): # "cp***" ?
+ try:
+ codecs.lookup(enc)
+ except LookupError:
+ import encodings
+ encodings._cache[enc] = encodings._unknown
+ encodings.aliases.aliases[enc] = 'mbcs'
+
+def setencoding():
+ """Set the string encoding used by the Unicode implementation. The
+ default is 'ascii', but if you're willing to experiment, you can
+ change this."""
+ encoding = "ascii" # Default value set by _PyUnicode_Init()
+ if 0:
+ # Enable to support locale aware default string encodings.
+ import locale
+ loc = locale.getdefaultlocale()
+ if loc[1]:
+ encoding = loc[1]
+ if 0:
+ # Enable to switch off string to Unicode coercion and implicit
+ # Unicode to string conversion.
+ encoding = "undefined"
+ if encoding != "ascii":
+ # On Non-Unicode builds this will raise an AttributeError...
+ sys.setdefaultencoding(encoding) # Needs Python Unicode build !
+
+
+def execsitecustomize():
+ """Run custom site specific code, if available."""
+ try:
+ import sitecustomize
+ except ImportError:
+ pass
+
+
+def main():
+ abs__file__()
+ paths_in_sys = removeduppaths()
+ if (os.name == "posix" and sys.path and
+ os.path.basename(sys.path[-1]) == "Modules"):
+ addbuilddir()
+ paths_in_sys = addsitepackages(paths_in_sys)
+ if sys.platform == 'os2emx':
+ setBEGINLIBPATH()
+ setquit()
+ setcopyright()
+ sethelper()
+ aliasmbcs()
+ setencoding()
+ execsitecustomize()
+ # Remove sys.setdefaultencoding() so that users cannot change the
+ # encoding after initialization. The test for presence is needed when
+ # this module is run as a script, because this code is executed twice.
+ if hasattr(sys, "setdefaultencoding"):
+ del sys.setdefaultencoding
+
+main()
+
+def _test():
+ print "sys.path = ["
+ for dir in sys.path:
+ print " %r," % (dir,)
+ print "]"
+
+if __name__ == '__main__':
+ _test()
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