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  • Python 2.3.1

    Python 2.3.1 Python 2.3.1 Note: See Python 2.3.5 for a patch release release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.3, there's a patch available from the security advisory page. Important: 2....

  • Python 3.4.0 Release Candidate 3 Release

    ...algorithm for Python strings and binary data PEP 3154, a new and improved protocol for pickled objects PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O More resources Online Documentation 3.4 Release Schedule Report bugs at http://bugs.python.org. Help fund Python and its community. Download This is a preview release, and its use is not recommended in production settings. Please proceed to the download page for the download. Notes on this release: The fin...

  • Python 3.4.1

    ...algorithm for Python strings and binary data PEP 3154, a new and improved protocol for pickled objects PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O More resources Change log for this release. Online Documentation What's new in 3.4? 3.4 Release Schedule Report bugs at http://bugs.python.org. Help fund Python and its community. Download Please proceed to the download page for the download. Notes on this release: The binaries for AMD64 will also work on ...

  • Python 3.4.2

    ...algorithm for Python strings and binary data PEP 3154, a new and improved protocol for pickled objects PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O More resources Change log for this release. Online Documentation What's new in 3.4? 3.4 Release Schedule Report bugs at http://bugs.python.org. Help fund Python and its community. Download Please proceed to the download page for the download. Notes on this release: The binaries for AMD64 will also work on ...

  • Python 3.4.3

    ...algorithm for Python strings and binary data PEP 3154, a new and improved protocol for pickled objects PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O More resources Change log for this release. Online Documentation What's new in 3.4? 3.4 Release Schedule Report bugs at http://bugs.python.org. Help fund Python and its community. Download Please proceed to the download page for the download. Notes on this release: The OS X installers are now distributed a...

  • Python 3.4.5

    ...algorithm for Python strings and binary data PEP 3154, a new and improved protocol for pickled objects PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O More resources Change log for this release. Online Documentation What's new in 3.4? 3.4 Release Schedule Report bugs at http://bugs.python.org. Help fund Python and its community. Download Please proceed to the download page to download Python 3.4.5. As of Python 3.4.5, the Python 3.4 series only receives N...

  • Foreword for "Programming Python" (1st ed.)

    ...string from the console, write a string to the console. I decided not repeat this mistake in Python. Besides this intention, I had a number of other ideas for improvement over ABC, and was eager to try them out. For instance, ABC's powerful data types turned out to be less efficient than we hoped. There was too much emphasis on theoretically optimal algorithms, and not enough tuning for common cases. I also felt that some of ABC's features, aimed at novice programmers, were less d...

  • Release – Python 3.14.0b2

    Version: None

    Released: May 26, 2025

    Here's the second 3.14 beta. https://www.python.org/downloads/release/python-3140b2/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b2, is the first of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes …

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  • Release – Python 3.4.1rc1

    Version: None

    Released: May 5, 2014

    Python 3.4.1rc1 Python 3.4 has reached end-of-life. Python 3.4.10, the final release of the 3.4 series, is available here. Python 3.4.1 was released on May 18th, 2014. Python 3.4.1 has over three hundred bugfixes and other improvements over 3.4.0. One notable change: the version of OpenSSL bundled with the Windows …

  • Release – Python 2.3.2

    Version: None

    Released: Oct. 3, 2003

    This is a patch release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need …

    View Release Notes

  • Release – Python 2.3.4

    Version: None

    Released: May 27, 2004

    This is a patch release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need …

    View Release Notes

  • Release – Python 2.3.3

    Version: None

    Released: Dec. 19, 2003

    This is a patch release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need …

    View Release Notes

  • Python 2.3.2

    Python 2.3.2 Python 2.3.2 Note: See Python 2.3.5 for a patch release release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.3, there's a patch available from the security advisory page. Important: ...

  • Python 2.3.3

    Python 2.3.3 Python 2.3.3 Note: See Python 2.3.5 for a patch release release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.3, there's a patch available from the security advisory page. Important: ...

  • Python 2.3.4

    Python 2.3.4 Python 2.3.4 Note: See Python 2.3.5 for a patch release which supersedes earlier releases of 2.3. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode builds (UCS-4)". This fix is included in Python 2.4.4 and Python 2.5. If you need to remain with Python 2.3, there's a patch available from the security advisory page. Important: 2.3.5 in...

  • Notes

    ...strings encoded in the preferred encoding, as informed by locale module's getpreferredencoding(). optparse module (and tests) upgraded to Optik 1.5a1. Changes: Add expansion of default values in help text: the string "%default" in an option's help string is expanded to str() of that option's default value, or "none" if no default value. Bug #955889: option default values that happen to be strings are now processed in the same way as values from the command line; this allow...

  • Release – Python 2.3.5

    Version: None

    Released: Feb. 8, 2005

    Python 2.3.5 (final) on Feb 8th, 2005. This is a bug-fix release for Python 2.3. There have been around 50 bugs fixed since 2.3.4 - in the Python interpreter, the standard library and also in the build process - see the release notes for details. Important: This release is vulnerable …

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  • Python 2.3.5

    Python 2.3.5 Python 2.3.5 We're happy to announce the release of Python 2.3.5 (final) on Feb 8th, 2005. This is a bug-fix release for Python 2.3. There have been around 50 bugs fixed since 2.3.4 - in the Python interpreter, the standard library and also in the build process - see the release notes for details. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun in repr() of unicode strings in wide unicode ...

  • Python 2.4.1 - Release Notes

    ...string string UU codec (e.g. for email) base64 string string base64 codec quopri string string quoted-printable codec zlib string string zlib compression hex string string 2-byte hex codec rot-13 string Unicode ROT-13 Unicode charmap codec Some operating systems now support the concept of a default Unicode encoding for file system operations. Notably, Windows supports 'mbcs' as the default. The Macintosh will also adopt this concept in the medium term, although the default encoding fo...

  • Unifying types and classes in Python 2.2

    ...string[, base_number]]) long([number_or_string]) float([number_or_string]) complex([number_or_string[, imag_number]]) str([object]) unicode([string[, encoding_string]]) tuple([iterable]) list([iterable]) type(object) or type(name_string, bases_tuple, methods_dict) The signature of type() requires an explanation: traditionally, type(x) returns the type of object x, and this usage is still supported. However, type(name, bases, methods) is a new usage that creates...

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