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Volunteer The Python Software Foundation needs your help building infrastructure for the PSF and PyCon US, helping with fundraising and advocacy, and running important parts of the Python community (mailing lists, website, job board, etc). You can help out by signing up the psf-volunteers mailing list, which puts you in a pool of people that receive requests from the PSF board when there is work to be done that we cannot handle ourselves. Sign up here! Don't worry if you won't always be availa...
Grant Types Sprints These types of dev events are usually 1-4 days long and the goal is to complete a set of objectives for a project. Sprints are usually on the small side and tend to be less than 20 people. Sprints that happen at conferences can have larger turnout though (like [PyCon Sprints](https://us.pycon.org/2017/community/sprints/) for example). [OpenHatch created a helpful in-person event handbook](http://opensource-events.com/) that can help you run a productive dev sprint. User ...
Community Survey This survey has concluded. The PSF is committed to ethical principles, transparency, and accountability. One of our goals is to regularly and openly provide our community with information about our mission, activities, finances, accomplishments, and decision-making processes. We want to be open about how we can improve transparency, provide the community with opportunities to interact with us, and be responsive to raised suggestions. To help us do this, we've created a short s...
Fiscal Sponsorees The Python Software Foundation promotes, protects, and advances the Python programming language and supports and facilitates the growth of a diverse and international community of Python programmers. Part of that mission includes acting as a fiscal sponsor to mission-related Python events, groups, and projects. The PSF provides 501(c)(3) tax-exempt status to fiscal sponsorees and manages back office issues like cash flow, accounting, budgeting, insurance, and contract/legal ...
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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 be …
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Python Success Stories Introduction My son Nat is autistic. He likes to look at pictures of familiar places, things, and people. We bought a digital camera so we could take as many pictures of as many ordinary things as we wanted, without having to worry about the cost and bother of film and development. Nat's tastes are difficult to predict, so we might take pictures of a subject certain to please him, only to find that he has no interest in them at all. We wanted to be able to cast a wi...
Released: Dec. 8, 2021
This is an early developer preview of Python 3.11 Major new features of the 3.11 series, compared to 3.10 Python 3.11 is still in development. This release, 3.11.0a3 is the third of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of …
Released: March 7, 2022
This is an early developer preview of Python 3.11 Major new features of the 3.11 series, compared to 3.10 Python 3.11 is still in development. This release, 3.11.0a6 is the sixth of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of …
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 …
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...
Python Software Foundation: Minutes of Board of Directors Meeting (July 16, 2002) The Python Software Foundation Minutes of Regular Meeting of the Board of Directors July 16, 2002. A regular regular meeting of the Python Software Foundation (the "PSF") Board of Directors was held over Internet Relay Chat at 1 pm EST. Guido van Rossum, president of the Foundation and chairman of the Board, presided at the meeting. 1. Attendance The following Board members were present: Tim Peters...
2013-05-31 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors May 31, 2013 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 May 31 2013. Van Lindberg presided over the meeting. Ewa Jodlowska prepared the minutes. All votes are reported in the form "Y-N-A" (in favor-Yâoppo...
Released: Oct. 5, 2021
This is an early developer preview of Python 3.11 Major new features of the 3.11 series, compared to 3.10 Python 3.11 is still in development. This release, 3.11.0a1 is the first of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of …
Pi-thon 2022 PSF Spring Fundraiser Pi-thon 2022 PSF Spring Fundraiser Launching on a very special day on the calendar, we invite you to honor the PSF and our favorite Greek letter and irrational number with a gift to support the Python ecosystem. ALL donors who give any multiple of 𝛑 will receive a special digital 𝛑SF swag bag. Show your love for our Python community and contribute to the Spring Fundraiser by May 3rd to get your slice of the pi! We aren’t setting a spec...
Proposed Improvements to Module Cleanup Proposed Improvements to Module Cleanup I'm experimenting with a better way of cleaning up at the end of an execution run. Without implementing true GC, I can never do it 100% right, but I can implement a predictable set of rules based on practical observation that will solve most problems that are actually observed. Here's my proposal. At the end of this message I list some potential problems with the proposal and ask for feedback. This wi...
Python Success Stories Introduction TTTech, founded in 1998, focuses on developing a technology for safety-critical real-time systems. Our central technology is the Time-Triggered Protocol (TTP), a communication protocol used in embedded systems for distributed fault-tolerant applications, such as drive-by-wire and fly-by-wire vehicles. For TTP, we provide chip models for implementing the necessary hardware in silicon, services to customers using the technology, and a broad range of tools. ...
2012-11-07 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors November 7, 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 7, 2012. Van Lindberg presided over the meeting. Ewa Jodlowska prepared the minutes. All votes are reported in the form "Y-N-A" (in favor...
2013-01-16 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors January 16, 2013 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 CET/ 12:00 EST, on January 16 2013. Van Lindberg presided over the meeting. Ewa Jodlowska prepared the minutes. All votes are reported in the form "Y-N-A" (in favor-Y...
2013-08-30 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors August 30, 2013 draft 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 August 30 2013. Van Lindberg presided over the meeting. Ewa Jodlowska prepared the minutes. All votes are reported in the form "Y-N-A" (in f...
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...
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