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  • About

    About Python is a remarkably powerful dynamic programming language that is used in a wide variety of application domains. Python is often compared to Tcl, Perl, Ruby, Scheme or Java. Some of its key distinguishing features include: very clear, readable syntax strong introspection capabilities intuitive object orientation natural expression of procedural code full modularity, supporting hierarchical packages exception-based error handling very high level dynamic data types extensive standard l...

  • Python Success Stories

    Python Success Stories Introduction LoveIntros is an online singles community for people living in the Northwest United States. The LoveIntros Web application allows members to create personal profiles, send and receive anonymous e-mails, create private Web journals, perform advanced profile searches, and execute many other functions. By providing a safe and effective way for individuals to find each other, LoveIntros makes it easier to meet new people who have similar interests and values an...

  • Python Success Stories

    Python Success Stories Background The Molecular Modeling Toolkit (MMTK) is a open source Python library for molecular modeling and simulation with a focus on biomolecular systems, written in a mixture of Python and C. It provides standard techniques such as Molecular Dynamics or normal mode calculations in a ready-to-use form, but also provides a basis of low-level operations on top of which new techniques can easily be implemented. I started developing MMTK in 1996. I had some experience wit...

  • Python 2.3.2

    Python 2.3.2 Python 2.3.2 Note: See Python 2.3.5 for a patch release release which supersedes earlier releases of 2.3. 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 2.3, there's a patch available from the security advisory page. Important: ...

  • Python 2.3.3

    Python 2.3.3 Python 2.3.3 Note: See Python 2.3.5 for a patch release release which supersedes earlier releases of 2.3. 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 2.3, there's a patch available from the security advisory page. Important: ...

  • Python 2.3.4

    Python 2.3.4 Python 2.3.4 Note: See Python 2.3.5 for a patch release which supersedes earlier releases of 2.3. 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 2.3, there's a patch available from the security advisory page. Important: 2.3.5 in...

  • Python 2.3.7 Release

    Python 2.3.7 Release Python 2.3.7 We are pleased to announce Python 2.3.7 (final), a bugfix release of Python 2.3, on March 11, 2008. Important: 2.3.7 is a source-only release. If you need a binary release of 2.3, use 2.3.5. If you need the fixes that are included in this release, use 2.5.2 or later. Python 2.3 is now well and truly in bugfix-only mode; no new features are being added, and only security critical bugs have been fixed. This release addresses a number of cases interpreter migh...

  • Python 2.4.5 Release

    Python 2.4.5 Release Python 2.4.5 We are pleased to announce Python 2.4.5 (final), a bugfix release of Python 2.4, on March 11, 2008. Important: 2.4.5 is a source-only release. If you need a binary release of 2.4, use 2.4.4. If you need the fixes that are included in this release, use 2.5.2 or later. Python 2.4 is now in security-fix-only mode. No new features are being added, and bugs are not fixed anymore unless they affect the stability and security of the interpreter, or of Python appli...

  • Privacy Policy

    Privacy Policy psf, privacy, policy Update update date 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 ...

  • Computer Programming for Everybody

    ...operator interfaces at the National Institute of Standards and Technology from 1980 through 1990, and on medical database information technology at the National Library of Medicine from 1990 through 1994. Statement of Work CNRI will perform the following work: Develop a prototype programming environment for Python, including program analysis and management tools suitable for use by novices. Develop a prototype tutorial to teach programming using Python to non-programmers, espec...

  • Release – Python 2.3.5

    Version: None

    Released: Feb. 8, 2005

    Python 2.3.5 (final) on Feb 8th, 2005. This is a bug-fix release for Python 2.3. There have been around 50 bugs fixed since 2.3.4 - in the Python interpreter, the standard library and also in the build process - see the release notes for details. Important: This release …

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  • Release – Python 3.5.10rc1

    Version: None

    Released: Aug. 22, 2020

    Python 3.5.10rc1 Python 3.5 has reached end-of-life. Python 3.5.10, the final release of the 3.5 series, is available here. Python 3.5.10rc1 was released on August 21st, 2020. Python 3.5 has now entered "security fixes only" mode, and as such the only changes since Python 3.5.4 …

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  • Release – Python 3.5.10

    Version: None

    Released: Sept. 5, 2020

    Python 3.5.10 Python 3.5 has reached end-of-life. Python 3.5.10 is the final release of 3.5. Python 3.5.10 was released on September 5th, 2020. Python 3.5.10 is the final release in the Python 3.5 series. As of this release, the 3.5 branch has been retired, no further …

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  • Release – Python 3.13.0b4

    Version: None

    Released: July 17, 2024

    This is a beta preview of Python 3.13 Python 3.13 is still in development. This release, 3.13.0b4, is the final beta release preview of 3.13. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their …

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  • Release – Python 3.13.4

    Version: None

    Released: June 3, 2025

    This is the fourth 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. 3.13.4 is the latest maintenance release, containing a few important security fixes as well as around …

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  • Release – Python 3.13.11

    Version: None

    Released: Dec. 5, 2025

    This is the eleventh maintenance release of Python 3.13 Note: This is Python 3.13.11, 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 3.13.11 is the eleventh maintenance release of …

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  • Python Success Stories

    Python Success Stories Introduction Journyx Timesheet (tm) is a commercial application that provides time, expense, and project tracking. In 1996, Curt Finch, Journyx CEO and founder, was working in the staffing industry when he saw an opportunity to use the web to accurately collect and store employee timesheet information. Journyx Time Entry Screen Zoom in The first version of Timesheet focused on collecting accurate cost information, with an eye towards applying that data in the formul...

  • Python 2.3.5

    Python 2.3.5 Python 2.3.5 We're happy to announce the release of Python 2.3.5 (final) on Feb 8th, 2005. This is a bug-fix release for Python 2.3. There have been around 50 bugs fixed since 2.3.4 - in the Python interpreter, the standard library and also in the build process - see the release notes for details. 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 ...

  • Python Success Stories

    Python Success Stories Introduction Wing IDE is a commercial integrated development environment for the Python programming language. Wing provides developers with a full-featured source editor, debugger, code browser, and many other tools specifically designed for use with Python. Wing works with all forms of Python, whether running as a stand-alone app, under a web server, or in a custom embedded scripting environment. Several GUI layers (wxPython, PyQt, PyGTK, and Tkinter) are supported, as...

  • Release – Python 3.13.0rc1

    Version: None

    Released: Aug. 1, 2024

    This is the first release candidate of Python 3.13.0 This release, 3.13.0rc1, is the penultimate release preview. Entering the release candidate phase, only reviewed code changes which are clear bug fixes are allowed between this release candidate and the final release. The second candidate (and the last planned …

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