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  • Release – Python 3.14.0b4

    Version: None

    Released: July 8, 2025

    It's the final 3.14 beta! https://www.python.org/downloads/release/python-3140b4/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b4, is the last of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes …

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  • Python Success Stories

    ...import cog, handyxml for p in handyxml.xpath('Properties.xml', '//property'): cog.outl("Property%s," % p.name) ]]] */ // [[[end]]] }; After running this file through Cog, it looks like this: // SchemaPropEnum.h enum SchemaPropEnum { /* [[[cog import cog, handyxml for p in handyxml.xpath('Properties.xml', '//property'): cog.outl("Property%s," % p.name) ]]] */ PropertyId, P...

  • Known bugs in Python 2.2.1

    ...import nested_scopes" in 2.1[.1]). This may change the meaning of code like the following: <pre> def f(<font color="red">str</font>): def g(x): return <font color="red">str</font>(x) return g System Message: WARNING/2 (<string>, line 68) Definition list ends without a blank line; unexpected unindent. </pre> In this example, the use of <font color="red">str</font> inside the inner function g() now refe...

  • Incompatibilities between Python 2.1[.x] and 2.2[.x]

    ...import nested_scopes" in 2.1[.1]). This may change the meaning of code like the following: <pre> def f(<font color="red">str</font>): def g(x): return <font color="red">str</font>(x) return g System Message: WARNING/2 (<string>, line 58) Definition list ends without a blank line; unexpected unindent. </pre> In this example, the use of <font color="red">str</font> inside the inner function g() now refe...

  • Python 3.3.0 Release

    ...import system (__import__) is based on importlib by default The new "lzma" module with LZMA/XZ support PEP 397, a Python launcher for Windows PEP 405, virtual environment support in core PEP 420, namespace package support PEP 3151, reworking the OS and IO exception hierarchy PEP 3155, qualified name for classes and functions PEP 409, suppressing exception context PEP 414, explicit Unicode literals to help with porting PEP 418, extended platform-independent clocks in the "time"...

  • Python 3.3.1 Release

    ...import system (__import__) is based on importlib by default The new "lzma" module with LZMA/XZ support PEP 397, a Python launcher for Windows PEP 405, virtual environment support in core PEP 420, namespace package support PEP 3151, reworking the OS and IO exception hierarchy PEP 3155, qualified name for classes and functions PEP 409, suppressing exception context PEP 414, explicit Unicode literals to help with porting PEP 418, extended platform-independent clocks in the "time"...

  • Python 3.3.2 Release

    ...import system (__import__) is based on importlib by default The new "lzma" module with LZMA/XZ support PEP 397, a Python launcher for Windows PEP 405, virtual environment support in core PEP 420, namespace package support PEP 3151, reworking the OS and IO exception hierarchy PEP 3155, qualified name for classes and functions PEP 409, suppressing exception context PEP 414, explicit Unicode literals to help with porting PEP 418, extended platform-independent clocks in the "time"...

  • Python 3.3.3 Release

    ...import system (__import__) is based on importlib by default The new "lzma" module with LZMA/XZ support PEP 397, a Python launcher for Windows PEP 405, virtual environment support in core PEP 420, namespace package support PEP 3151, reworking the OS and IO exception hierarchy PEP 3155, qualified name for classes and functions PEP 409, suppressing exception context PEP 414, explicit Unicode literals to help with porting PEP 418, extended platform-independent clocks in the "time"...

  • Python 3.3.4 Release

    ...import system (__import__) is based on importlib by default The new "lzma" module with LZMA/XZ support PEP 397, a Python launcher for Windows PEP 405, virtual environment support in core PEP 420, namespace package support PEP 3151, reworking the OS and IO exception hierarchy PEP 3155, qualified name for classes and functions PEP 409, suppressing exception context PEP 414, explicit Unicode literals to help with porting PEP 418, extended platform-independent clocks in the "time"...

  • Executive Summary: The Python Software Foundation

    ...important concern here is that the licensing was made by those that had a legal right to do so, in other words by the original authors or copyright holders of the code. The legal history of the code in Python is thus defined in two ways: (1) In the earlier days of Python, employee contracts and related law ensured that the organizations that released Python under the various licenses had the rights to the code that was added in each release. The open source licenses used by those organizations g...

  • Archive 2018: Executive Summary: The Python Software Foundation

    ...important concern here is that the licensing was made by those that had a legal right to do so, in other words by the original authors or copyright holders of the code. The legal history of the code in Python is thus defined in two ways: (1) In the earlier days of Python, employee contracts and related law ensured that the organizations that released Python under the various licenses had the rights to the code that was added in each release. The open source licenses used by those organizations g...

  • Release – Python 3.1.1

    Version: None

    Released: Aug. 17, 2009

    Python 3.1.1 has been superseded by 3.1.2. You can download 3.1.2. Python 3.1.1 was released on August 17th, 2009. Python 3.1 is a continuation of the work started by Python 3.0, the new backwards-incompatible series of Python. Improvements in this release include: An ordered dictionary type Various optimizations …

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  • Release – Python 3.1.2

    Version: None

    Released: March 20, 2010

    Note: It is recommended that you use the latest bug fix release of the 3.1 series, 3.1.4. Python 3.1.2 was released on March 21st, 2010. The Python 3.1 version series is a continuation of the work started by Python 3.0, the new backwards-incompatible series of Python. Improvements in …

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  • Release – Python 3.3.6rc1

    Version: None

    Released: Oct. 4, 2014

    This is a security-fix source-only release. The last binary release was 3.3.5. The list of fixed security related issues can be found in the NEWS file. Major new features of the 3.3 series, compared to 3.2 Python 3.3 includes a range of improvements of the 3.x series, as …

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  • Release – Python 3.3.6

    Version: None

    Released: Oct. 12, 2014

    Python 3.3.x has reached end-of-life. Python 3.3.7, the final security-fix release, is available here. This is a security-fix source-only release. The list of fixed security related issues can be found in the NEWS file. Major new features of the 3.3 series, compared to 3.2 Python 3.3 includes a …

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  • Release – Python 3.5.0b1

    Version: None

    Released: May 24, 2015

    Python 3.5.0b1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b1 was released on May 24th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features and changes in the 3.5 release series …

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  • Release – Python 3.5.0b2

    Version: None

    Released: June 1, 2015

    Python 3.5.0b2 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b2 was released on May 31st, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features and changes in the 3.5 release series …

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  • Release – Python 3.5.0b3

    Version: None

    Released: July 5, 2015

    Python 3.5.0b3 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b3 was released on July 5th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features and changes in the 3.5 release series …

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  • Release – Python 3.5.0b4

    Version: None

    Released: July 26, 2015

    Python 3.5.0b4 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0b4 was released on July 26th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features and changes in the 3.5 release series …

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  • Release – Python 3.5.0rc1

    Version: None

    Released: Aug. 11, 2015

    Python 3.5.0rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.0rc1 was released on August 10th, 2015. Major new features of the 3.5 series, compared to 3.4 Among the new major new features and changes in the 3.5 release series …

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