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  • Python 2.4.4 Release

    Python 2.4.4 Release Python 2.4.4 We are pleased to announce the release of Python 2.4.4 (FINAL), a bugfix release of Python 2.4, on October 18, 2006. Important: 2.4.4 includes a security fix (PSF-2006-001) for the repr() of unicode strings in wide unicode builds (UCS-4) Python 2.4 is now in bugfix-only mode; no new features are being added. At least 80 bugs have been squished since Python 2.4.3, including a number of bugs and potential bugs found by with the Coverity and Klocwork static an...

  • Python 2.5 Release

    Python 2.5 Release Python 2.5 Python 2.5 has been replaced by a newer bugfix release of Python. Please download Python 2.5.6 instead. 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. PEP 356 includes the schedule and will be updated as the schedule evolves. At this point, ...

  • Python 2.5.1 Release

    Python 2.5.1 Release Python 2.5.1 Python 2.5.1 has been replaced by a newer bugfix release of Python. Please download Python 2.5.6 instead. Python 2.5.1 was released on April 18th, 2007. This is the first bugfix release of Python 2.5. Python 2.5 is now in bugfix-only mode; no new features are being added. According to the release notes, over 150 bugs and patches have been squished since Python 2.5, including a fair number in the new AST compiler (an internal implementation detail of the Pyth...

  • Python 2.5.2 Release

    Python 2.5.2 Release Python 2.5.2 Python 2.5.2 has been replaced by a newer bugfix release of Python. Please download Python 2.5.6 instead. Python 2.5.2 was released on February 21st, 2008. This is the second bugfix release of Python 2.5. Python 2.5 is now in bugfix-only mode; no new features are being added. According to the release notes, over 100 bugs and patches have been addressed since Python 2.5.1, many of them improving the stability of the interpreter, and improving its portability....

  • Python 2.5.3 Release

    Python 2.5.3 Release Python 2.5.3 Python 2.5.3 has been replaced by a newer bugfix release of Python. Please download Python 2.5.6 instead. Python 2.5.3 was released on December 19th, 2008. This is the last bugfix release of Python 2.5. Python 2.5 is now in bugfix-only mode; no new features are being added. According to the release notes, about 80 bugs and patches have been addressed since Python 2.5.2, many of them improving the stability of the interpreter, and improving its portability. F...

  • Python 2.5.4 Release

    Python 2.5.4 Release Python 2.5.4 We are pleased to announce the release of Python 2.5.4 (final), a bugfix release of Python 2.5, on December 23rd, 2008. Python 2.5.4 has been replaced by a newer bugfix release of Python. Please download Python 2.5.6 instead, unless you need to use the Windows and OS X binaries provided here. This is the last bugfix release of Python 2.5. Future releases of Python 2.5 will only contain security patches; no new features are being added, and no "regular&...

  • Python 3.4.0 Release Candidate 1 Release

    Python 3.4.0 Release Candidate 1 Release Python 3.4.0 release candidate 1 Note: Python 3.4.0rc1 has been superseded by Python 3.4.9. Python 3.4.0 release candidate 1 was released on February 10th, 2014. This is a preview release of the next major release of Python, Python 3.4, and is not suitable for production environments. Major new features of the 3.4 series, compared to 3.3 Python 3.4 includes a range of improvements of the 3.x series, including hundreds of small improvements and bug fix...

  • 2010 PSF Members' Meeting Minutes (informal)

    2010 PSF Members' Meeting Minutes (informal) The Python Software Foundation Minutes of the 2010 Members' Meeting February 19, 2010 The Python Software Foundation (the "PSF") held an informal annual members' meeting on February 19, 2010 during lunch at the Hyatt Regency Atlanta hotel in Atlanta, Georgia, USA (PyCon 2010 Atlanta). Steve Holden presided over the meeting. Pat Campbell prepared these minutes. Contents 1   Attendance 2   Greetings &a...

  • Python 3.4.0 Release Candidate 2 Release

    Python 3.4.0 Release Candidate 2 Release Python 3.4.0 release candidate 2 Note: Python 3.4.0rc2 has been superseded by Python 3.4.9. Python 3.4.0 release candidate 2 was released on February 23th, 2014. This is a preview release of the next major release of Python, Python 3.4, and is not suitable for production environments. Major new features of the 3.4 series, compared to 3.3 Python 3.4 includes a range of improvements of the 3.x series, including hundreds of small improvements and bug fix...

  • Donation Drive

    Donation Drive ThePSF, Python Software Foundation, Python, PSF Support the PSF to further the development and adoption of Python .crm-contribute-widget { font-size:12px; font-family:Helvetica, Arial, sans; padding:6px; -moz-border-radius: 4px; -webkit-border-radius: 4px; -khtml-border-radius: 4px; border-radius: 4px; border:1px solid #96C0E7; width:200px; } .crm-contribute-...

  • PSF Sponsorship Prospectus

    PSF Sponsorship Prospectus sponsorship sponsor prospectus PSF Sponsorship Program Your contributions matter and they make an IMPACT. Below are some of the ways the PSF uses its funding to support the Python community: Python Community Infrastructure The PSF supports the Python Package Index (PyPI), mail.python.org, wiki.python.org, and us.pycon.org. In addition to the costs of the community web services we provide, we need staff to expand our services programs and keep them running 24/...

  • Release – Python 3.14.0b1

    Version: None

    Released: May 7, 2025

    Only one day late, welcome to the first beta! This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b1, is the first of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to …

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  • Release – Python 3.14.0b4

    Version: None

    Released: July 8, 2025

    It's the final 3.14 beta! https://www.python.org/downloads/release/python-3140b4/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b4, is the last of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new …

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  • Release – Python 3.14.0rc2

    Version: None

    Released: Aug. 14, 2025

    It's the final 🪄 penultimate 🪄 3.14 release candidate! Note: rc2 was originally planned for 2025-08-26, but we fixed a bug that required bumping the magic number stored in Python bytecode (.pyc) files. This means .pyc files created for rc1 cannot be used for rc2, and they'll …

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  • Release – Python 3.14.0rc3

    Version: None

    Released: Sept. 18, 2025

    It's 🪄 finally 🪄 the final 3.14 release candidate! Note: It's another magic release. We fixed another bug that required bumping the magic number stored in Python bytecode (.pyc) files. This means file .pyc files created for rc2 cannot be used for rc3, and they'll be recompiled. …

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  • Mailing lists

    Mailing lists Python mailing lists and newsgroups Here's an overview of the mail and news resources for python. For a complete listing of python.org's public mailing lists you can view them on Mailman 3. To request a new list, send e-mail to postmaster @ python.org; please check first to make sure a similar list does not already exist. Mailing lists for users speaking languages other than English are listed in the non-English python resources guide, which includes mailing lists, translate...

  • 2012-11-21 PSF Board Meeting Minutes

    2012-11-21 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors November 21, 2012 A regular meeting of the Python Software Foundation ("PSF") Board of Directors was held over Group Conference Call via phone and Internet Relay Chat beginning at 18:00 CEST/ 12:00 EDT, on November 21 2012. Van Lindberg presided over the meeting. Ewa Jodlowska prepared the minutes. All votes are reported in the form "Y-N-A" (in favo...

  • 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 …

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  • Frank Willison Memorial Award

    ...generators and continuations. You can learn more about Stackless from the project's history page and this IBM developerWorks interview with Christian by David Mertz. Christian also co-founded PyPy, an implementation of Python in Python, with Armin Rigo and Holger Krekel. Christian worked on PyPy full time for a period, using EU funding. Later, he worked on the JIT compiler Psyco with Raymond Hettinger to create Psyco V2. Most recently, he has been employed by CCP Games to work on combining Stack...

  • Release – Python 3.12.0a6

    Version: None

    Released: March 8, 2023

    This is an early developer preview of Python 3.12. Major new features of the 3.12 series, compared to 3.11 Python 3.12 is still in development. This release, 3.12.0a6 is the sixth of seven planned alpha releases. Alpha releases are intended to make it easier to test …

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