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  • Python Success Stories

    Python Success Stories Introduction Strakt is a Swedish company which specializes in developing scalable and secure products for collaboration in workflow intensive workplaces. Our vision is to empower professionals to collaborate in an enjoyable, intuitive, and efficient way that is tailored to their and their organisations' needs, while simultaneously developing and maintaining digitally stored organisational memory. In 2001, AB Strakt embarked on a large software development project aimed ...

  • 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 …

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  • Python Success Stories

    Python Success Stories Introduction AstraZeneca is one of the world's leading pharmaceutical companies. With over 54,000 employees world-wide, it provides innovative, effective medicines designed to fight cancer, provide pain control, heal infection, and fight diseases of the cardiovascular, central nervous, gastrointestinal, and respiratory systems. Finding a new drug often takes over a decade and more than $800 million. A big problem early in the process is identifying those candidates more...

  • 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....

  • Linux RPMs for Python 2.3.2

    Linux RPMs for Python 2.3.2 <h1>Linux RPMs for Python 2.3.2</h1> <p>Except where noted, these RPMs are made available by Sean Reifschneider (<a href="mailto:jafo-rpms@tummy.com">jafo-rpms@tummy.com</a>). <h3>Having Problems?</h3> If you are having problems, please see the <a href="#FAQ">RPM Frequently Asked Questions</a> section at the end of this document for possible solutions. <h3>RPMs For Other Platform...

  • Python 2.0 License

    Python 2.0 License Python 2.0 License Information HISTORY OF THE SOFTWARE Python was created in the early 1990s by Guido van Rossum at Stichting Mathematisch Centrum (CWI) in the Netherlands as a successor of a language called ABC. Guido is Python's principal author, although it includes many contributions from others. The last version released from CWI was Python 1.2. In 1995, Guido continued his work on Python at the Corporation for National Research Initiatives (CNRI) in Res...

  • Sponsor the PSF

    Sponsor the PSF sponsor sponsorship The Python Software Foundation Sponsorship Program The PSF offers an all-in-one sponsorship program: all PSF sponsorships support the full scope of the PSF’s work, including PyCon US as well as PyPI (Python Package Index), CPython, and more. PSF sponsors receive an array of benefits that include a broad selection of promotional opportunities during PyCon US and also year-round. Join us as a sponsor to help make a difference and stand out in the Python ...

  • Release – Python 2.6.9

    Version: None

    Released: Oct. 29, 2013

    With the 2.6.9 release, and five years after its first release, the Python 2.6 series is now officially retired. All official maintenance for Python 2.6, including security patches, has ended. For ongoing maintenance releases, please see the Python 2.7 series. The NEWS file lists every change in each alpha, …

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  • PSF Membership Types & FAQ

    PSF Membership Types & FAQ 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 the international community of Python programmers. —from the Mission Statement page What does it mean to be a member of the PSF? What membership classes are there? Who is allowed to vote? Why am I a Basic Member even though I’m a Supporting/Contributing/Fellow Member? How does a person become a PS...

  • Release – Python 2.3.1

    Version: None

    Released: Sept. 23, 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 …

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  • Release – Python 2.3.0

    Version: None

    Released: July 29, 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 …

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  • 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...

  • Python 2.6.2 Release

    Python 2.6.2 Release Python 2.6.2 Python 2.6.2 has been replaced by a newer bugfix release of Python. Please download Python 2.6.6 instead. Python 2.6.2 was released on April 14, 2009. Python 2.6 is now in bugfix-only mode; no new features are being added. Dozens of bugs reported since the release of 2.6.1 have been fixed. The NEWS file lists every change in each alpha, beta, and release candidate of Python 2.6. What's New in Python 2.6. Report bugs at http://bugs.python.org. Read the Py...

  • 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: ...

  • Release – Python 3.14.0a5

    Version: None

    Released: Feb. 11, 2025

    Here comes the antepenultimate alpha. This is an early developer preview of Python 3.14 Major new features of the 3.14 series, compared to 3.13 Python 3.14 is still in development. This release, 3.14.0a5, is the fifth of seven planned alpha releases. Alpha releases are intended to …

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  • 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 …

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  • Linux RPMs for Python 2.3.3

    Linux RPMs for Python 2.3.3 <h1>Linux RPMs for Python 2.3.3</h1> <p>Except where noted, these RPMs are made available by Sean Reifschneider (<a href="mailto:jafo-rpms@tummy.com">jafo-rpms@tummy.com</a>). <h3>Having Problems?</h3> If you are having problems, please see the <a href="#FAQ">RPM Frequently Asked Questions</a> section at the end of this document for possible solutions. <h3>RPMs For Other Platform...

  • 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 …

    View Release Notes

  • Python Success Stories

    Python Success Stories Background The Molecular Modeling Toolkit (MMTK) is a open source Python library for molecular modeling and simulation with a focus on biomolecular systems, written in a mixture of Python and C. It provides standard techniques such as Molecular Dynamics or normal mode calculations in a ready-to-use form, but also provides a basis of low-level operations on top of which new techniques can easily be implemented. I started developing MMTK in 1996. I had some experience wit...

  • PSF Developers in Residence

    PSF Developers in Residence The Python Software Foundation’s Developer in Residence Program supports full-time developers who are focused on improving the Python programming language and its ecosystem. These developers play a crucial role in advancing Python’s core development, maintaining critical infrastructure, and supporting the broader community through mentorship, documentation, and tooling. Their work also addresses essential areas such as packaging, supply chain security, and the conti...

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