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  • PSF Grants Program

    ...Python community. We can’t wait to hear about your event, workshop, or regional community—so let’s jump right in! Guiding Principles The PSF Grants Program supports hundreds of Python-related conferences, workshops, and communities globally in line with our 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. To faci...

  • Release – Python 3.7.7

    Version: None

    Released: March 10, 2020

    Note: The release you are looking at is a bugfix release for the legacy 3.7 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 3.7 was 3.7.17. The Python 3.7 …

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  • PSF Contributor Agreement for Python

    ...Python Contributor Agreement This Contributor Agreement is between Python Software Foundation (“PSF”) and the individual or other entity identified below (“the Contributor”): Contributor: __________________________________________ Address: __________________________________________ __________________________________________ Email: __________________________________________ Contributor offers to license certain software (a “Contrib...

  • Known bugs in Python 2.2.1

    ...Python 2.2.1</h2> <p>This page now exists only to clarify incompatibilities between Python version 2.2[.x] and versions before 2.2. <h3>Incompatibilities between Python 2.1[.x] and Python 2.2[.x]</h3> <p>The following visible differences between Python 2.2 and previous versions are intentional. <ul> <p><li>Not everything is listed here; for the full list see the <a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/~checkout~/python/pytho...

  • Python Success Stories

    ...Python was discovered quite early when a member of the development team read about Python in a computer magazine. After some initial experimentation there were really no other contenders. Python had it all. It was a beautiful programming language that was extensible, embeddable, platform independent, and had no license cost. When it came to incorporate Python into the Tribon software, we found the integration to be quite easy and problem-free, and it was achieved with very little effort. The res...

  • Python Software Foundation: Press Release 20-Dec-2019

    ...Python 3 will be the only major version of CPython that is actively maintained for bugs and security issues. Users are urged to migrate to a supported version of Python 3 in order to benefit from its many improvements, as well as to avoid potential security vulnerabilities in Python 2.x after April 2020. For the current status of Python 3 versions, see https://devguide.python.org/#status-of-python-branches. Users of commercial Python distributions and commercial applications that embed a Pytho...

  • Metaclasses in Python 1.5

    ...Python 1.5 Metaclasses in Python 1.5 (A.k.a. The Killer Joke :-) (Postscript: reading this essay is probably not the best way to understand the metaclass hook described here. See a message posted by Vladimir Marangozov which may give a gentler introduction to the matter. You may also want to search Deja News for messages with "metaclass" in the subject posted to comp.lang.python in July and August 1998.) In previous Python releases (and still in 1.5), there is something c...

  • Release – Python 3.7.7rc1

    Version: None

    Released: March 4, 2020

    Note Python 3.8 is now the latest feature release series of Python 3. Get the latest release of 3.8.x here. We plan to continue to provide bugfix releases for 3.7.x until mid 2020 and security fixes until mid 2023. Python 3.7.7rc1 is the release candidate preview of the seventh …

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  • Computer Programming for Everybody

    ...Python Conference, San Jose, Ca., Oct. 1997, pp. 11-20. [Hugunin2] Jim Hugunin. JPython Update. Invited talk, 7th International Python Conference. Houston, Tex., Nov. 1998. PowerPoint slides: http://www.jpython.org/jpython-talk-1.ppt [Jackson] Daniel Jackson and Allison Waingold. Lightweight Extraction of Object Models from Bytecode. In Proceedings of the International Conference on Software Engineering, Los Angeles, Ca., May 1999. [JPython] http://www.jpython.org/ [Know...

  • MacPython 2.2.1

    ...python/2.2.1/MacPython221full.bin">MacPython221full.bin</a> (9919488 bytes) b7ae6ef91b6e8aac2965c8a42e6bd7ac <a href="/ftp/python/2.2.1/MacPython221full.hqx">MacPython221full.hqx</a> (13496114 bytes) <b>Source Installers - MacPython source code and CodeWarrior projects</b> Note that the normal installer contains everything you need if you only want to develop Python extensions. 15f00793c20a5f0aae19dc97eddbec4a <a href="/ftp/python/2.2.1/M...

  • Release – Python 3.7.8

    Version: None

    Released: June 27, 2020

    Note: The release you are looking at is a bugfix release for the legacy 3.7 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 3.7 was 3.7.17. Please see the …

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  • Release – Python 2.4.3

    Version: None

    Released: April 15, 2006

    We are pleased to announce the release of …

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  • 2021 end-of-the-year fundraiser!

    ...code SUPPORTPYTHON21, You can donate directly to the PSF! Donate Today! Contributing to the PSF financially helps sustain programs that support the larger Python community. This year the PSF launched two critical initiatives thanks to Google's sponsorship and Bloomberg's grant. We're super happy to now support Python core development and Python Packaging in new ways: Core Development: In July 2021, the PSF hired its inaugural Developer-in-Residence, Łukasz Langa. Łukasz works full-time ...

  • Fiscal Sponsorees

    ...Python Association (BAPyA) BAPyA is a group of Python community organizers in the San Francisco Bay Area dedicated to supporting local gatherings to learn and discuss Python. Please consider supporting the BAPyA community with a contribution. Boston Python Boston Python is one of the world's largest local Python user groups. We have a presentation night and a project night almost every month, and run weekend workshops to introduce beginners to Python. Your donation helps keep the Python commu...

  • 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&...

  • Release – Python 2.5.4

    Version: None

    Released: Dec. 23, 2008

    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" bugs will be fixed anymore. According …

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  • Release – Python 3.7.8rc1

    Version: None

    Released: June 17, 2020

    Note Note: The release you are looking at is a bugfix release preview for the legacy 3.7 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 3.7 was 3.7.17. Note …

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  • 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 2.5.2 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....

  • Release – Python 2.5.3

    Version: None

    Released: Dec. 19, 2008

    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 …

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