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  • Alternative Python implementations

    ...Python (nicknamed CPython). A number of alternative implementations are available as well, namely PyPy (a fast implementation of Python with a JIT compiler) IronPython (Python running on .NET) MicroPython (Python running on microcontrollers and in the web browser) Stackless Python (a branch of CPython supporting microthreads) Jython (Python running on the Java Virtual Machine) GraalPy (embeddable Python runtime for Java) Other parties have repackaged CPython. These re-packagings often inclu...

  • 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 …

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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...

  • 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 3.7.8

    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 …

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  • Payment Options

    ...code The account number or IBAN Wise If you select the Wise (formerly Transferwise) option, the PSF will need the following information to process payment: The email or Wise ID of the beneficiary on the account The name of the beneficiary on the account The beneficiary’s address on the account The bank name The bank address The bank SWIFT code The account number or IBAN Note that Wise works with certain currencies available on their site. Additionally, per the terms of Wise, non-profits are n...

  • Release – Python 2.4.3

    Version: None

    Released: April 15, 2006

    We are pleased to announce the release of Python 2.4.3 (final), a bugfix release of Python 2.4, on March 29, 2006. Python 2.4 is now in bugfix-only mode; no new features are being added. At least 50 bugs have been squashed since Python 2.4.2, including a number …

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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 to the release notes, about 80 bugs and patches have been addressed since Python 2.5.2, …

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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 of …

    View Release Notes

  • 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...

  • Release – Python 2.5.2

    Version: None

    Released: Feb. 21, 2008

    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 …

    View Release Notes

  • 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 …

    View Release Notes

  • Release – Python 2.5.1

    Version: None

    Released: April 19, 2007

    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 …

    View Release Notes

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