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  • Release – Python 3.11.5

    Version: None

    Released: Aug. 24, 2023

    This is the fifth maintenance release of Python 3.11 Python 3.11.5 is the newest major release of the Python programming language, and it contains many new features and optimizations. Security content in this release gh-108310: Fixed an issue where instances of ssl.SSLSocket were vulnerable …

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  • Release – Python 3.13.0a4

    Version: None

    Released: Feb. 15, 2024

    This is an early developer preview of Python 3.13 Major new features of the 3.13 series, compared to 3.12 Python 3.13 is still in development. This release, 3.13.0a4, is the fourth of six planned alpha releases. Alpha releases are intended to make it easier to test the …

  • [PYTHON MATRIX-SIG] FAQ

    [PYTHON MATRIX-SIG] FAQ Here's my first step at creating a FAQ for this project. If anybodyelse wants to take it up, please feel free. This is going to be veryfree form, off the top of my head and unedited. Still, I anticipatethat it will be useful. Occaionally I will steal text entirely fromother people on the SIG without any attribution. I'll try to fix thislater. Written by Jim Hugunin (hugunin@mit.edu) on April 25, 1996. 1) What's Numerical Python? Here should really go...

  • Download Python 1.6.1 Source

    Download Python 1.6.1 Source Python 1.6.1 CNRI OPEN SOURCE GPL-COMPATIBLE LICENSE AGREEMENT IMPORTANT: PLEASE READ THE FOLLOWING AGREEMENT CAREFULLY. BY CLICKING ON "ACCEPT" WHERE INDICATED BELOW, OR BY COPYING, INSTALLING OR OTHERWISE USING PYTHON 1.6.1 SOFTWARE, YOU ARE DEEMED TO HAVE AGREED TO THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. 1. This LICENSE AGREEMENT is between the Corporation for National Research Initiatives, having an office at 1895 Preston Whit...

  • Download Python 1.6.1 Windows Installer

    Download Python 1.6.1 Windows Installer Python 1.6.1 CNRI OPEN SOURCE GPL-COMPATIBLE LICENSE AGREEMENT IMPORTANT: PLEASE READ THE FOLLOWING AGREEMENT CAREFULLY. BY CLICKING ON "ACCEPT" WHERE INDICATED BELOW, OR BY COPYING, INSTALLING OR OTHERWISE USING PYTHON 1.6.1 SOFTWARE, YOU ARE DEEMED TO HAVE AGREED TO THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. 1. This LICENSE AGREEMENT is between the Corporation for National Research Initiatives, having an office at 1895 P...

  • Mission

    Mission The mission of the Python Software Foundation is to promote, protect, and advance the Python programming language, and to support and facilitate the growth of a diverse and international community of Python programmers. You can help fund the PSF by making a donation or becoming a member. The following is the official mission statement of the PSF: The Python Software Foundation (PSF) is a non-profit membership organization devoted to advancing open source technology related to the Py...

  • Python Software Foundation Press Releases

    Python Software Foundation Press Releases Because the PSF is a membership organization, PSF news is usually sent to a members mailing list, or posted on this web site. The PSF may also issue press releases from time to time, for news of general interest. In addition, some press releases issued by other organizations relevant to Python are listed below. Python Software Foundation December 20, 2019 - Python 2 Series To Be Retired By April 2020 March 9, 2005 - PyCon 2005: Keynote Speech From ...

  • Python Software Foundation: Minutes of Board of Directors Meeting (October 14, 2003)

    Python Software Foundation: Minutes of Board of Directors Meeting (October 14, 2003) The Python Software Foundation Minutes of Regular Meeting of the Board of Directors October 14, 2003 A regular meeting of the Python Software Foundation (the "PSF") Board of Directors was held over Internet Relay Chat at 18:00 GMT. Guido van Rossum, president of the Foundation and chairman of the Board, presided at the meeting. 1. Attendance The following members of the Board of Directors were present ...

  • Python Software Foundation: Minutes of Board of Directors Meeting (Januar 13, 2004)

    Python Software Foundation: Minutes of Board of Directors Meeting (Januar 13, 2004) The Python Software Foundation Minutes of Regular Meeting of the Board of Directors Januar 13, 2004 A regular meeting of the Python Software Foundation (the "PSF") Board of Directors was held over Internet Relay Chat at 18:00 GMT. Guido van Rossum, president of the Foundation and chairman of the Board, presided at the meeting. 1. Attendance The following members of the Board of Directors were present at...

  • Python Software Foundation: Minutes of Board of Directors Meeting (December 14, 2004)

    Python Software Foundation: Minutes of Board of Directors Meeting (December 14, 2004) .. raw:: html The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors December 14, 2004 .. sectnum:: A regular meeting of the Python Software Foundation (the "PSF") Board of Directors was held over Internet Relay Chat at 18:00 UTC, December 14, 2004. Stephan Deibel presided at the meeting. Attendance ========== The following members of the Board of Dir...

  • Python Software Foundation: Minutes of Board of Directors Meeting (April 12, 2005)

    Python Software Foundation: Minutes of Board of Directors Meeting (April 12, 2005) The Python Software Foundation Minutes of Regular Meeting of the Board of Directors April 12, 2005 A regular meeting of the Python Software Foundation (the "PSF") Board of Directors was held over Internet Relay Chat at 17:00 GMT. Stephan Deibel presided at the meeting. 1. Attendance The following members of the Board of Directors were present at the meeting: David Ascher, Stephan Deibel, Tim Peters, Andr...

  • Release – Python 3.14.0rc1

    Version: None

    Released: July 22, 2025

    It's the first 3.14 release candidate! https://www.python.org/downloads/release/python-3140rc1/ This is the first release candidate of Python 3.14 This release, 3.14.0rc1, 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 …

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  • Debugging Reference Count Problems

    Debugging Reference Count Problems Warning This page stays here for historical reasons and it may contain outdated or incorrect information. Debugging Reference Count Problems From: Guido van Rossum <guido@CNRI.Reston.VA.US> To: python-list@cwi.nl Date: Wed, 27 May 1998 11:09:40 -0400 Mike Fletcher wrote a number of posts about debugging C code that bombs, probably because of reference count problems. His approach to debugging this problem seems typical, but I thin...

  • Python 2.4.3 Release

    Python 2.4.3 Release Python 2.4.3 Python 2.4.3 has been replaced by a newer bugfix release of Python. Please see the releases page to select a more recent release. 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 We are pleased to announce the release of Python 2.4.3 (final), a bugfix release of Python 2.4, on March 29,...

  • 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...

  • 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-...

  • Proxy Form - 2009-03-27 PSF Members' Meeting

    Proxy Form - 2009-03-27 PSF Members' Meeting This form was finalized on March 17, 2009. You may designate someone to vote on your behalf at the meeting, a proxy. Be sure that your designated proxy will be attending the meeting and is willing to act as your proxy. PSF members who have indicated their willingness to act as proxy are listed in the meeting agenda. The text source of this form can be found here (suitable for emailing). As a member of the Python Software Foundation (PSF), I...

  • 2007-06-11 PSF Board Meeting Minutes

    2007-06-11 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors June 11, 2007 A regular meeting of the Python Software Foundation ("PSF") Board of Directors was held over Internet Relay Chat beginning at 17:07 UTC, 11 June 2007. Stephan Deibel presided at the meeting. David Goodger prepared these minutes. Contents 1   Attendance 2   Minutes of Past Meetings 3   Status of Pa...

  • Release – Python 3.6.9

    Version: None

    Released: July 2, 2019

    Note: The release you are looking at is Python 3.6.9, a security bugfix release for the legacy 3.6 series which has now reached end-of-life and is no longer supported. See the downloads page for currently supported versions of Python. The final source-only security fix release for 3.6 was 3.6.15 …

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  • Release – Python 3.9.0a2

    Version: None

    Released: Dec. 18, 2019

    This is an early developer preview of Python 3.9 Major new features of the 3.9 series, compared to 3.8 Python 3.9 is still in development. This releasee, 3.9.0a2 is the second of six planned alpha releases. Alpha releases are intended to make it easier to test the current …

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