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  • Power Python:

    ...Python Packaging Index (PyPI), awarding grants to Python initiatives worldwide, maintaining critical community infrastructure, and more. To build the future of Python and sustain the thriving community that its users deserve, we need your help. By backing the PSF, you’re investing in Python’s growth and health, and your contributions directly impact the language's future. Is your community, work, or hobby powered by Python? Join this year’s drive and power Python’s future with us by donating ...

  • Privacy Policy

    ...Python Software Foundation Privacy Policy The Python Software Foundation (the “PSF”) is is dedicated to the security and privacy of your data. We want you to know what data we collect, how we collect it, and what we do with it so that you may decide whether or not to provide information to us. By visiting PSF websites or are otherwise providing your personal information to us via any other means, you are accepting and consenting to the practices described in this Policy. Unless specified o...

  • Support Python in 2023!

    ...Security Developer in Residence - Seth Larson joined the PSF earlier this year as our first ever Security Developer-in-Residence. Seth is already well-known to the Python community – he was named a PSF Fellow in 2022 and has already written a lot about Python and security on his blog. This critical role would not be possible without funding from the OpenSSF Alpha-Omega Project. PyPI Safety & Security Engineer - Mike Fiedler joined the PSF earlier this year as our first ever PyPI Safety & Secur...

  • Release – Python 2.2.1

    Version: None

    Released: April 10, 2002

    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 2.2, there's a patch available from the …

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  • Release – Python 3.5.5rc1

    Version: None

    Released: Jan. 23, 2018

    Python 3.5.5rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.5rc1 was released on January 23rd, 2018. Python 3.5 has now entered "security fixes only" mode, and as such the only improvements between Python 3.5.4 and Python 3.5.5rc1 are security …

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  • Release – Python 3.5.5

    Version: None

    Released: Feb. 5, 2018

    Python 3.5.5 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.5 was released on February 4th, 2018. Python 3.5 has now entered "security fixes only" mode, and as such the only improvements between Python 3.5.4 and Python 3.5.5 are security …

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  • Release – Python 3.5.6rc1

    Version: None

    Released: July 20, 2018

    Python 3.5.6rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.6rc1 was released on July 19th, 2018. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.6

    Version: None

    Released: Aug. 2, 2018

    Python 3.5.6 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.6 was released on August 2nd, 2018. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.7rc1

    Version: None

    Released: March 4, 2019

    Python 3.5.7rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.7rc1 was released on March 4th, 2019. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.7

    Version: None

    Released: March 18, 2019

    Python 3.5.7 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.7 was released on March 18th, 2019. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.8rc1

    Version: None

    Released: Sept. 9, 2019

    Python 3.5.8rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.8rc1 was released on September 9th, 2019. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.8rc2

    Version: None

    Released: Oct. 12, 2019

    Python 3.5.8rc2 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.8rc2 was released on October 12th, 2019. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.8

    Version: None

    Released: Oct. 29, 2019

    Python 3.5.8 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.8 was released on October 29th, 2019. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 are security fixes. Also, Python …

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  • Release – Python 3.5.4

    Version: None

    Released: Aug. 8, 2017

    Python 3.5.4 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.4 was released on August 8th, 2017. Python 3.5.4 is the last "bugfix" release of 3.5. The Python 3.5 branch has now entered "security fixes only" mode; going forward, the …

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  • Release – Python 3.5.4rc1

    Version: None

    Released: July 25, 2017

    Python 3.5.4rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.4rc1 was released on July 25th, 2017. Python 3.5.4 will be the last "bugfixes" release of 3.5. After 3.5.4 final is released, 3.5 will enter "security fixes only" mode, and …

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  • Release – Python 3.3.7rc1

    Version: None

    Released: Sept. 6, 2017

    This is a security-fix source-only release. The last binary release was 3.3.5. This is the release candidate of Python 3.3.7. Python 3.3.0 was released on 2012-09-29 and has been in security-fix-only mode since 2014-03-08. Per Python Development policy, all support for the 3.3 series of releases ends on 2017-09-29 …

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  • Python 2.2.1

    Python 2.2.1 Python 2.2.1 Note: See Python 2.2.3 for a patch release which supersedes 2.2.1. 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 2.2, there's a patch available from the security advisory page. We are pleased to announce the release o...

  • Python 2.4.1

    ...Python 2.4.4 Note: there's a security fix for SimpleXMLRPCServer.py - this fix is included in 2.4.1 Python 2.4.1 is a bugfix release of Python 2.4 - Python 2.4 is now in bugfix-only mode, no new features are being added. Several dozen bugs were squashed since Python 2.4, including the SimpleXMLRPCServer security fix. See the detailed release notes for more, For more information on the new features of Python 2.4 see the 2.4 highlights or consult Andrew Kuchling's What's New In Python for a more ...

  • Release – Python 2.4.1

    Version: None

    Released: March 30, 2005

    We are pleased to announce the release of Python 2.4.1 (final) on March 30, 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 …

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  • Python 2.5.6

    Python 2.5.6 Python 2.5.6 We are pleased to announce the release of Python 2.5.6, a security fix release of Python 2.5, on May 26th, 2011. The last binary release of Python 2.5 was 2.5.4. This is a source-only release that only includes security fixes. The last full bug-fix release of Python 2.5 was Python 2.5.4. User are encouraged to upgrade to the latest release of Python 2.7 (which is 2.7.2 at this point). This release is the final release of Python 2.5; under the current release policy...

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