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  • Release – Python 3.7.0b1

    Version: None

    Released: Jan. 31, 2018

    This is a beta preview of Python 3.7 Python 3.7 is still in development. This release, 3.7.0b1, is the first of four planned beta release previews. Among the major new features in Python 3.7 are: PEP 538, Coercing the legacy C locale to a UTF-8 …

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  • Release – Python 3.7.0b2

    Version: None

    Released: Feb. 28, 2018

    This is a beta preview of Python 3.7 Python 3.7 is still in development. This release, 3.7.0b2, is the second of four planned beta release previews. Among the major new features in Python 3.7 are: PEP 538, Coercing the legacy C locale to a UTF-8 …

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  • Release – Python 3.6.5

    Version: None

    Released: March 28, 2018

    Note: The release you are looking at is Python 3.6.5, a bugfix release for the legacy 3.6 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 3.6 was 3.6.15 and …

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  • Release – Python 3.6.6

    Version: None

    Released: June 27, 2018

    Note: The release you are looking at is Python 3.6.6, a bugfix release for the legacy 3.6 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 3.6 was 3.6.15 and …

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  • Release – Python 3.6.7

    Version: None

    Released: Oct. 20, 2018

    Note: The release you are looking at is Python 3.6.7, a bugfix release for the legacy 3.6 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 3.6 was 3.6.15 and …

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  • Release – Python 3.6.8rc1

    Version: None

    Released: Dec. 11, 2018

    Python 3.6.8rc1 is a release candidate preview of the eighth and last maintenance release of Python 3.6. The Python 3.6 series contains many new features and optimizations. Note Python 3.7 is now released and is the latest feature release of Python 3. Get the latest release of …

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  • Release – Python 3.6.8

    Version: None

    Released: Dec. 24, 2018

    Note: The release you are looking at is Python 3.6.8, the final bugfix release for the legacy 3.6 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 3.6 was 3.6.15 …

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  • Release – Python 3.7.2

    Version: None

    Released: Dec. 24, 2018

    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. Among the …

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  • Release – Python 3.5.9

    Version: None

    Released: Nov. 2, 2019

    Python 3.5.9 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.9 was released on November 1st, 2019. There were no new changes in version 3.5.9; 3.5.9 was released only because of a CDN caching problem, …

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  • Release – Python 3.7.6rc1

    Version: None

    Released: Dec. 11, 2019

    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 3.7.6rc1 is the release candidate preview …

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  • Release – Python 3.9.0b2

    Version: None

    Released: June 9, 2020

    WARNING: this release has a known regression See BPO-40924 for details. Use Python 3.9.0b3 or newer instead, please. This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b2, is the second of four planned beta release previews. Beta release previews …

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  • Python Success Stories

    ...modules that only handle the few time-critical aspects: evaluation of interaction energies, and long-running iterative algorithms such as energy minimization and Molecular Dynamics, which run without any Python-related overhead. Extensive use is made of Numerical Python, LAPACK, and the netCDF library. MMTK provides multi-threading support for shared memory parallel machines, and MPI-based parallelization for distributed memory machines. The biggest part of MMTK is a set of classes that describe...

  • Other Documentation Tools

    ...modules being documented. Conversion tools are available which convert to plain text, HTML, LaTeX, and others. How to write POD for a module How to write POD for a program/script Synopsis -- Cross-language documentation generator, currently supports IDL and C++. Written mostly in Python (download from the SourceForge project page). AutoDoc -- Documentation generator for T...

  • Bugs in Python 2.3.1

    Bugs in Python 2.3.1 <h3>Bugs in Python 2.3.1</h3> <ul> <li>IDLE now executes code in a separate process. To communicate between the main process and executing processes, IDLE opens a socket to 127.0.0.1 (the local machine). Some firewalls running on Windows machines interfere with this and can cause either silent failures or erroneous popup windows from the firewall. This problem only occurs if you run a firewall on the same machine as IDLE.</li> <li>The...

  • 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 …

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  • Release – Python 3.14.0rc2

    Version: None

    Released: Aug. 14, 2025

    It's the final 🪄 penultimate 🪄 3.14 release candidate! Note: rc2 was originally planned for 2025-08-26, but we fixed a bug that required bumping the magic number stored in Python bytecode (.pyc) files. This means .pyc files created for rc1 cannot be used for rc2, and they'll …

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  • Release – Python 3.14.0rc3

    Version: None

    Released: Sept. 18, 2025

    It's 🪄 finally 🪄 the final 3.14 release candidate! Note: It's another magic release. We fixed another bug that required bumping the magic number stored in Python bytecode (.pyc) files. This means file .pyc files created for rc2 cannot be used for rc3, and they'll be recompiled. …

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  • Python Success Stories

    ...modules had other tables describing the mapping from disk to memory structures. The validation module had its own tables containing rules about which properties had to be present on which items. The in-memory objects had getters and setters for each property. It worked, after a fashion, but was becoming unmanageable. Adding a new property to the schema required editing ten tables in different formats in as many source files, as well as adding getters and setters for the new property. There was...

  • 2009-12-14 PSF Board Meeting Minutes

    2009-12-14 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors December 14, 2009 A regular meeting of the Python Software Foundation ("PSF") Board of Directors was held over Internet Relay Chat beginning at 17:00 UTC, 9 November 2009. Steve Holden presided at the meeting. Pat Campbell prepared the minutes. All votes are reported in the form "Y-N-A" (in favor — opposed — abstentions; e.g. "5-1-2" mea...

  • Python Success Stories

    ...modules: Resource, Node, Movement, Item, and Path. This model, known as the ERP5 Universal Business Model, makes it possible to reuse code by abstracting away from the specific domain and encapsulating the generic relationships and actions common to many business processes. As a result, modules as different as Payroll and Invoice can share almost of all their code. In this example of the ERP5 Universal Business Model, Movement allows the transfer of a quantity of resource from one node to ano...

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