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  • Release – Python 3.11.0a2

    Version: None

    Released: Nov. 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, 3.11.0a2 is the second of seven planned alpha releases. Alpha releases are intended to make it easier to test the …

  • Release – Python 3.11.0a5

    Version: None

    Released: Feb. 3, 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, 3.11.0a5 is the fifth of seven planned alpha releases. Alpha releases are intended to make it easier to test the …

  • Release – Python 3.7.16

    Version: None

    Released: Dec. 6, 2022

    This is a security release of Python 3.7 Note: The release you are looking at is a security 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 security bugfix …

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  • Release – Python 3.8.17

    Version: None

    Released: June 6, 2023

    This is a security release of Python 3.8 Note: The release you're looking at is Python 3.8.17, a security bugfix release for the legacy 3.8 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest release of 3.11.x here. Security content …

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  • Release – Python 3.14.3

    Version: None

    Released: Feb. 3, 2026

    This is third maintenance release of Python 3.14 Python 3.14.3 is the third maintenance release of 3.14, containing around 299 bugfixes, build improvements and documentation changes since 3.14.2. Major new features of the 3.14 series, compared to 3.13 Some of the major new features and changes …

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  • Release – Python 3.14.4

    Version: None

    Released: April 7, 2026

    This is fourth maintenance release of Python 3.14 Python 3.14.4 is the fourth maintenance release of 3.14, containing around 337 bugfixes, build improvements and documentation changes since 3.14.3. Major new features of the 3.14 series, compared to 3.13 Some of the major new features and changes …

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  • Proposed Improvements to Module Cleanup

    ...versions. (It has been suggested to add a reference named e.g. ".module" in the importing module, to indicate the dependency and prevent this problem; while this may do the job nicely, I'm reluctant to implement it because it may confuse introspective tools.)

  • Notes

    ...versions. Hopefully fixed a buffering problem in linuxaudiodev. Attempted a fix to make the OpenSSL support in the socket module work again with pre-0.9.5 versions of OpenSSL. Tests Added a test case for asynchat and asyncore. Removed coupling between tests where one test failing could break another. Tools Ping added an interactive help browser to pydoc, fixed some nits in the rest of the pydoc code, and added some features to his inspect module. An updated python-mode.el version 4.1 which i...

  • Python documentation by version

    ...versions of the documentation remain available online. Use the list below to select a version to view. For unreleased (in development) documentation, see In development versions. Python 3.14.0, documentation released on 7 October 2025. Python 3.13.9, documentation released on 14 October 2025. Python 3.13.8, documentation released on 7 October 2025. Python 3.13.7, documentation released on 14 August 2025. Python 3.13.6, documentation released on 6 August 2025. Python 3.13.5, documentation relea...

  • Release – Python 3.9.0a5

    Version: None

    Released: March 23, 2020

    This is an early developer preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0a5 is the fifth of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the …

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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 …

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  • Release – Python 3.11.0a3

    Version: None

    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 …

  • Release – Python 3.11.0a6

    Version: None

    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 …

  • Alternative Python implementations

    ...versions, including scientific computing modules) Nuitka (a compiler that packages user code with CPython into a static binary for improved performance and IP protection) pyodide (a Python distribution for the browser and Node.js based on WebAssembly) WinPython (a portable scientific Python distribution for Windows) Python(x, y) (Scientific-oriented distribution based on Qt and Spyder) Conceptive Python SDK (targets business, desktop and database applications) PyIMSL Studio (a commercial distri...

  • Release – Python 3.14.1

    Version: None

    Released: Dec. 2, 2025

    This is the first maintenance release of Python 3.14 Python 3.14.1 is the first maintenance release of 3.14, containing around 558 bugfixes, build improvements and documentation changes since 3.14.0. Major new features of the 3.14 series, compared to 3.13 Some of the major new features and …

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  • Python Success Stories

    ...versions of VTK-CFD and 3 versions of MayaVi. MayaVi has been downloaded over 12,000 times from SourceForge, with over 3,500 downloads of the latest release in a three months time period. There are now thousands of users all over the world applying MayaVi in many research fields. It has recently been packaged for Debian Linux and was included in its latest release, Woody. Conclusion If it weren't for Python, MayaVi would not exist. Programming in Python is such a pleasure and so easy that ev...

  • PSF PyCon Trademark Usage Policy

    PSF PyCon Trademark Usage Policy PyCon, trademark, policy Version 1.0 "PyCon" Trademark Policy In order to protect the term "PyCon" against unwanted or misleading use by third parties, the PSF claims the term “PyCon” as a trademark worldwide for conference activities. The PSF is additionally pursuing registration of the mark in various jurisdictions. It is the policy of the Python Software Foundation to allow the use of "PyCon" for conferences that focus on Pytho...

  • Executive Summary: The Python Software Foundation

    Executive Summary: The Python Software Foundation Written by Stephan Deibel, Chairman of the Board, Python Software Foundation. A version of this article was originally published in The Python Papers volume 2, issue 4. Last updated March 2008 Introduction “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.” The Python Software Foundatio...

  • Archive 2018: Executive Summary: The Python Software Foundation

    Archive 2018: Executive Summary: The Python Software Foundation Written by Stephan Deibel, Chairman of the Board, Python Software Foundation. A version of this article was originally published in The Python Papers volume 2, issue 4. Last updated March 2008 Introduction “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.” The Python Soft...

  • PSF Trademark Usage Policy

    PSF Trademark Usage Policy PSF Trademark Policy and Guidelines In case you have questions regarding our trademark policy, please check our PSF Trademark FAQ or contact the PSF Trademarks Committee for help. Introduction This document outlines the policy of the Python Software Foundation ("PSF") regarding the use of its trademarks. Any use of any PSF trademark must be in accordance with this policy. "Python" is a registered trademark of the PSF. The Python logos (in severa...

Python language documentation

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