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  • Release – Python 3.12.6

    Version: None

    Released: Sept. 6, 2024

    This is the sixth maintenance release of Python 3.12 Python 3.12 is the newest major release of the Python programming language, and it contains many new features and optimizations. 3.12.6 is the latest maintenance release, containing about 90 bugfixes, build improvements and documentation changes since 3.12.5. This is an …

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  • Python Success Stories

    ...library makes it unmanageable for larger programs. In a very important project, the Finnish Civil Aviation Administration (FCAA) wanted to run their user interface layouts not just on the PowerPanel, but also in the context of a web browser. This requirement was important enough that it led to re-implementation of the PanMachine in Java, so it could be run as an applet in the browser. Because Lua could not be run under Java, this was a good time to replace it. Python and Jython, the Java impl...

  • Python Success Stories

    ...library modules mailbox, email, and smtplib, and the Cheetah templating system was used to create the acknowledgement messages. When dealing with critical data accessed by several programs, all running at full speed under a heavy load, it is critical to to prevent hidden race conditions. Since Python currently lacks a standard global locking module, the glock module by Richard Gruet was used to lock the mailboxes. Once messages had been processed and acknowledged, Suzanne had to send requests to...

  • IDLE and tkinter with Tcl/Tk on macOS

    ...Library/Frameworks for Tcl and Tk frameworks with the proper major version. This is the standard location for third-party or built from source frameworks, including the ActiveTcl releases. If frameworks of the proper major version are not found there, the dynamic linker looks for the same version in /System/Library/Frameworks, the location for Apple-supplied frameworks shipped with macOS. (Note, you should normally not modify or delete files in /System/Library.) As is common on macOS, the inst...

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

    ...library, and in migrated libraries and applications. Python 3 is a noticeable improvement to Python. There is ground-up support for Unicode and internationalization. It better expresses common idioms and patterns, which in code makes it easier to read and reason about. Improvements in concurrency, fault handling, testing, and debugging provide developers with the opportunity to create more robust and secure applications. Going forward, Python 3 will be the only major version of CPython that is...

  • Release – Python 3.13.0b1

    Version: None

    Released: May 8, 2024

    This is a beta preview of Python 3.13 Python 3.13 is still in development. This release, 3.13.0b1, is the first of four beta release previews of 3.13. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to …

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  • Release – Python 3.13.0

    Version: None

    Released: Oct. 7, 2024

    This is the stable release of Python 3.13.0 Python 3.13.0 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. (Compared to the last release candidate, 3.13.0rc3, 3.13.0 contains two small bug fixes and some documentation and …

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  • Release – Python 3.13.2

    Version: None

    Released: Feb. 4, 2025

    This is the second maintenance release of Python 3.13 Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.2 is the latest maintenance release, containing almost 250 bugfixes, build improvements and documentation changes since …

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  • Release – Python 3.13.3

    Version: None

    Released: April 8, 2025

    This is the third maintenance release of Python 3.13 Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.3 is the latest maintenance release, containing almost 320 bugfixes, build improvements and documentation changes since …

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  • Release – Python 3.13.6

    Version: None

    Released: Aug. 6, 2025

    This is the sixth maintenance release of Python 3.13 Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.6 is the sixth maintenance release of 3.13, containing around 200 bugfixes, build improvements and documentation …

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  • Release – Python 3.13.8

    Version: None

    Released: Oct. 7, 2025

    This is the eighth maintenance release of Python 3.13 Python 3.13 is the newest previous major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.8 is the eighth maintenance release of 3.13, containing around 200 bugfixes, build improvements and …

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  • Release – Python 3.13.10

    Version: None

    Released: Dec. 2, 2025

    This is the tenth maintenance release of Python 3.13 Python 3.13.10 is the tenth maintenance release of 3.13, containing around 300 bugfixes, build improvements and documentation changes since 3.13.9. Major new features of the 3.13 series, compared to 3.12 Some of the new major new features and …

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  • Release – Python 3.13.12

    Version: None

    Released: Feb. 3, 2026

    This is the twelfth maintenance release of Python 3.13 Note: This is Python 3.13.12, a maintenance release for Python 3.13. Python 3.14 is now the latest feature release series of Python 3. Get the latest release of 3.14.x here. Python 3.13.12 is the twelfth maintenance release of …

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  • Notes

    ...library unittest.py, a unit testing framework by Steve Purcell (PyUNIT, inspired by JUnit), is now part of the standard library. You now have a choice of two testing frameworks: unittest requires you to write testcases as separate code, doctest gathers them from docstrings. Both approaches have their advantages and disadvantages. A new module Tix was added, which wraps the Tix extension library for Tk. With that module, it is not necessary to statically link Tix with _tkinter, since Tix will...

  • Release – Python 3.13.0a3

    Version: None

    Released: Jan. 17, 2024

    This is an early developer preview of Python 3.13 Major new features of the 3.13 series, compared to 3.12 Python 3.13 is still in development. This release, 3.13.0a3, is the third of six planned alpha releases. Alpha releases are intended to make it easier to test the …

  • Python 2.4.4 Documentation

    ...Library Reference (keep this under your pillow) Macintosh Library Modules (this too, if you use a Macintosh) Language Reference (for language lawyers) Extending and Embedding (tutorial for C/C++ programmers) Python/C API (reference for C/C++ programmers) Documenting Python (information for documentation authors) Installing Python Modules (information for installers & sys-admins) Distributing Python Modules (sharing modules with others) If you have comments or suggesti...

  • Python 2.5 Documentation

    ...Library Reference (keep this under your pillow) Macintosh Library Modules (this too, if you use a Macintosh) Language Reference (for language lawyers) Extending and Embedding (tutorial for C/C++ programmers) Python/C API (reference for C/C++ programmers) Documenting Python (information for documentation authors) Installing Python Modules (information for installers & sys-admins) Distributing Python Modules (sharing modules with others) If you have comments or suggesti...

  • Python 2.5.2 Documentation

    ...Library Reference (keep this under your pillow) Macintosh Library Modules (this too, if you use a Macintosh) Language Reference (for language lawyers) Extending and Embedding (tutorial for C/C++ programmers) Python/C API (reference for C/C++ programmers) Documenting Python (information for documentation authors) Installing Python Modules (information for installers & sys-admins) Distributing Python Modules (sharing modules with others) If you have comments or suggesti...

  • Python 2.5.3 Documentation

    ...Library Reference (keep this under your pillow) Macintosh Library Modules (this too, if you use a Macintosh) Language Reference (for language lawyers) Extending and Embedding (tutorial for C/C++ programmers) Python/C API (reference for C/C++ programmers) Documenting Python (information for documentation authors) Installing Python Modules (information for installers & sys-admins) Distributing Python Modules (sharing modules with others) If you have comments or suggesti...

  • Python 2.5.4 Documentation

    ...Library Reference (keep this under your pillow) Macintosh Library Modules (this too, if you use a Macintosh) Language Reference (for language lawyers) Extending and Embedding (tutorial for C/C++ programmers) Python/C API (reference for C/C++ programmers) Documenting Python (information for documentation authors) Installing Python Modules (information for installers & sys-admins) Distributing Python Modules (sharing modules with others) If you have comments or suggesti...

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