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  • Python Success Stories

    ...compiler versions when Tribon Solutions did so, and so forth. This would have been an expensive and complex solution, only usable by the largest shipyards in the world, those that had their own large IT and development departments. The second approach was preferable, as long as a tool could be found or developed that covered most of the given criteria. Tribon already had a geometry macro language that was developed in-house, but to extend it to the desired level of functionality would have been ...

  • Bugs in Python 2.3.2

    Bugs in Python 2.3.2 <h3>Bugs in Python 2.3.2</h3> <ul> <li>IDLE now executes code in a separate process. To communicate between the main process and executing processes, IDLE opens a socket to 127.0.0.1 (the local machine). Some firewalls running on Windows machines interfere with this and can cause either silent failures or erroneous popup windows from the firewall. This problem only occurs if you run a firewall on the same machine as IDLE.</li> </ul> &...

  • Community Stories

    ...compiler pipeline and the garbage collector I like to work all over the place fixing bugs and trying to spot performance improvement opportunities. Hopefully, in the following years, we can push Python forward to the future by improving its general speed, making it more compatible with other implementations and improving the multi-core experience. Although this will be a challenging path and will require drastic changes in Python itself and its C-API, I am very excited about the things to come a...

  • Frank Willison Memorial Award

    ...compiler, converting the bulk of the import system implementation from C to Python, creating the "devinabox" project to make it easier for new contributors to get started at development sprints, writing the "Python-dev Summaries" articles from 2002 to 2005, and moderating the python-ideas mailing list since its introduction in December 2006. Brett has served on the PSF Board of Directors from 2006-2010, and again from 2013-2014, and was PSF Vice President in 2006-2007, and Ex...

  • Release – Python 3.13.0rc1

    Version: None

    Released: Aug. 1, 2024

    This is the first release candidate of Python 3.13.0 This release, 3.13.0rc1, is the penultimate release preview. Entering the release candidate phase, only reviewed code changes which are clear bug fixes are allowed between this release candidate and the final release. The second candidate (and the last planned …

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  • Release – Python 3.13.0rc2

    Version: None

    Released: Sept. 6, 2024

    This is the second release candidate of Python 3.13.0 This release, 3.13.0rc2, is the final release preview. This release is expected to become the final 3.13.0 release, barring any critical bugs being discovered. The official release of 3.13.0 is scheduled for Tuesday, 2024-10-01. There will be no …

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  • Release – Python 3.13.1

    Version: None

    Released: Dec. 3, 2024

    This is the first maintenance release of Python 3.13 Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.1 is the latest maintenance release, containing almost 400 bugfixes, build improvements and documentation changes since …

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  • Release – Python 3.15.0b1

    Version: None

    Released: May 7, 2026

    It's the first beta and feature freeze! This is a beta preview of Python 3.15 Python 3.15 is still in development. This release, 3.15.0b1, is the first of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new …

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  • Python Success Stories

    Python Success Stories Background Successful information search is mission-critical. It increases worker efficiency and saves money. On an external web site, it also increases customer satisfaction and helps retain users to the web site. The average company can waste millions of dollars because its employees cannot locate and retrieve the information that is needed for their jobs. Infoseek released the original version of Ultraseek Server on March 31, 1997. It was built by wrapping Infoseek's...

  • SIG for development of Python/C++ integration

    SIG for development of Python/C++ integration SIG for development of Python/C++ integration The Python C++ SIG is a forum for discussions about the integration of Python and C++, with an emphasis on the development of the Boost.Python library. At the point of this writing (Jan 2002), Boost.Python is undergoing a major rewrite to add powerful new features and to take full advantage of the new type system introduced in Python 2.2. Suggestions regarding the direction of the develop...

  • Release – Python 3.15.0rc1

    Version: None

    Released: Aug. 4, 2026

    It's the first 3.15 release candidate! This is a candidate preview of Python 3.15 This release, 3.15.0rc1, is the first of two planned candidate releases. Entering the release candidate phase, only reviewed code changes which are clear bug fixes are allowed between this release candidate and the …

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  • Python Success Stories

    Python Success Stories Summary XIST is a XML transformation engine written completely in Python at LivingLogic AG, a software development company specializing in web technology. XIST was designed to facilitate the task of creating and maintaining large web sites. Background Soon after we began creating web pages in 1994, it became clear that typing HTML files by hand is tedious and cumbersome, and we began to search for tools to simplify the repetitive task of HTML generation. Early on, we ...

  • Release – Python 2.4.0

    Version: None

    Released: Nov. 30, 2004

    We are pleased to announce the release of Python 2.4, final on November 30, 2004. This is a final, stable release, and we can recommend that Python users upgrade to this version. Important: This release is vulnerable to the problem described in security advisory PSF-2006-001 "Buffer overrun …

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  • Release – Python 2.4.1

    Version: None

    Released: March 30, 2005

    We are pleased to announce the release of Python 2.4.1 (final) on March 30, 2005. 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 …

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  • Release – Python 2.4.2

    Version: None

    Released: Sept. 27, 2005

    We are pleased to announce the release of Python 2.4.2 (final), a bugfix release, on September 28, 2005. 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 …

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  • Python 2.4

    Python 2.4 Python 2.4 Python 2.4 has been replaced by a newer bugfix release. Please see the releases page to select a more recent release. We are pleased to announce the release of Python 2.4, final on November 30, 2004. This is a final, stable release, and we can recommend that Python users upgrade to this version. 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-...

  • Highlights: Python 2.4

    ...compiler now treats assigning to None as a SyntaxError. Failed import cleanup - when a module import failed, versions of Python prior to 2.4a2 would leave a broken module in sys.modules - subsequent attempts to import the failing module would silently succeed, but use the broken module object. The import machinery now removes the failing module from sys.modules if the import fails. The -m command line option - python -m modulename will find a module in the standard library, and invoke it. For...

  • Python 2.4.1

    Python 2.4.1 Python 2.4.1 Python 2.4.1 has been replaced by a newer bugfix release. Please see the releases page to select a more recent release. We are pleased to announce the release of Python 2.4.1 (final) on March 30, 2005. 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 Note: there's a security fix for SimpleXMLR...

  • Python 2.4.2 Release

    Python 2.4.2 Release Python 2.4.2 Python 2.4.2 has been replaced by a newer bugfix release of Python. Please see the releases page to select a more recent release. We are pleased to announce the release of Python 2.4.2 (final), a bugfix release, on September 28, 2005. 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 Pyt...

  • Release – Python 2.5.0

    Version: None

    Released: Sept. 19, 2006

    Python 2.5 was released on September 19th 2006. There's a bunch of places you can look for more information on what's new in this release -- see the "What's New" section further down this page. This is a final release, and should be suitable for production use. …

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