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  • Highlights: Python 2.4

    Highlights: Python 2.4 Highlights: Python 2.4 Here are the (subjective) highlights of what's new in Python 2.4. Faster A number of modules that were added in Python 2.3 (such as sets and heapq) have been recoded in C. In addition, there's been a number of other speedups to the interpreter. (See section 8.1, Optimizations, of the "What's New" document for more). New language features multi-line imports - when using imports in the form from foo import bar, baz, bing, bang, you c...

  • Release – Python 3.12.0b3

    Version: None

    Released: June 19, 2023

    This is a beta preview of Python 3.12 Python 3.12 is still in development. This release, 3.12.0b3, is the third of four beta release previews of 3.12. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to …

  • Release – Python 3.12.0b4

    Version: None

    Released: July 11, 2023

    This is a beta preview of Python 3.12 Python 3.12 is still in development. This release, 3.12.0b4, is the final of four beta release previews of 3.12. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to …

  • Python.org Website Maintenance

    Python.org Website Maintenance If you wish to volunteer to help maintain the Python.org website, you can find installation guide at https://pythondotorg.readthedocs.org/.

  • Retired SIGS

    Retired SIGS These are SIGs that existed in the past but are no longer active. Their archives and home pages are retained. A retired SIG can be revived, using the same criteria as for creating a new SIG. Name Coordinator Description Info   catalog-sig A.M. Kuchling The Python software catalog archive March 2013 compiler-sig Jeremy Hylton Compiling and parsing Python Type checking, code generation archive May 2001 do-sig David Arnold Distributed Object Technologies archive A...

  • Glue It All Together With Python

    Glue It All Together With Python Glue It All Together With Python Guido van Rossum CNRI 1895 Preston White Drive Reston, VA 20191 Email: guido@cnri.reston.va.us, guido@python.org Position paper for the OMG-DARPA-MCC Workshop on Compositional Software Architecture in Monterey, California, January 6-8, 1998. Introduction Python is an advanced scripting language that is being used successfully to glue together large software components. It spans multiple platforms, mid...

  • PSF Bylaws

    PSF Bylaws Bylaws of the Python Software Foundation, Version 2 ARTICLE I Business Offices The corporation shall have such offices either within or outside the State of Delaware and within or outside the United States, as the Board of Directors may from time to time determine or as the business of the corporation may require. ARTICLE II Registered Offices and Registered Agents Section 2.1. Delaware. The address of the initial registered office in the State of Delaware and the name of the initia...

  • The Python type system SIG

    The Python type system SIG The Python type system SIG This list has been created for discussions on issues related to Python's type system. Recently, the types SIG has come under attack for inactivity, and in response Paul Prescod has offered to guide the SIG towards accomplishing a single specific goal: to develop an optional static typing system for Python. The December 1999 archives of the SIG show the discussion that lead to this decision. Resources The following resource...

  • Diversity

    Diversity On October 12, 2009, the Board of the Python Software Foundation adopted the following Diversity Statement: The Python Software Foundation and the global Python community welcome and encourage participation by everyone. Our community is based on mutual respect, tolerance, and encouragement, and we are working to help each other live up to these principles. We want our community to be more diverse: whoever you are, and whatever your background, we welcome you. For additional resource...

  • Release – Python 3.12.0b2

    Version: None

    Released: June 6, 2023

    This is a beta preview of Python 3.12 Python 3.12 is still in development. This release, 3.12.0b2 is the second of four beta release previews of 3.12. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to …

  • Supporting Membership

    Supporting Membership Become a Supporting Member of the PSF! Sign up as a Supporting Member What does it mean to be a Supporting Member of the PSF? Supporting Members make an annual membership donation to the PSF to fund our work for the Python language and the Python community. Supporting Members have voting rights in annual PSF Board Elections and bylaw votes. Supporting Members provide an important share of the PSF’s annual revenue every year. Income from Supporting Membership...

  • Release – Python 2.7.9rc1

    Version: None

    Released: Nov. 26, 2014

    Python 2.7.9rc1 is the first release candidate for the next bugfix version of the Python 2.7 series. Python 2.7.9 will include several significant changes unprecedented in a "bugfix" release: The entirety of Python 3.4's ssl module has been backported for Python 2.7.9. See PEP 466 for justification. …

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  • Help Fund Python Development and Maintenance

    Help Fund Python Development and Maintenance Donate to Python Development and Maintenance The Python Software Foundation's goal is to increase the support we provide for Python development and maintenance. Through the donation button above, you can financially contribute to this cause. The PSF will use Python development fundraising to support CPython development and maintenance. Additionally, the funds will be used for mission-related sprints, such as the annual core dev...

  • Comparing Python to Other Languages

    Comparing Python to Other Languages Comparing Python to Other Languages Disclaimer: This essay was written sometime in 1997. It shows its age. It is retained here merely as a historical artifact. --Guido van Rossum Python is often compared to other interpreted languages such as Java, JavaScript, Perl, Tcl, or Smalltalk. Comparisons to C++, Common Lisp and Scheme can also be enlightening. In this section I will briefly compare Python to each of these languages. These comparison...

  • PSF PyCon Trademark Usage Policy

    PSF PyCon Trademark Usage Policy PyCon, trademark, policy Version 1.0 "PyCon" Trademark Policy In order to protect the term "PyCon" against unwanted or misleading use by third parties, the PSF claims the term “PyCon” as a trademark worldwide for conference activities. The PSF is additionally pursuing registration of the mark in various jurisdictions. It is the policy of the Python Software Foundation to allow the use of "PyCon" for conferences that focus on Pytho...

  • Release – Python 2.2.0

    Version: None

    Released: Dec. 21, 2001

    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 …

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  • Python 2.2

    Python 2.2 Python 2.2 Note: See Python 2.2.3 for a patch release which supersedes 2.2. 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 extremely pleased to announce the relea...

  • Python Patterns - Implementing Graphs

    Python Patterns - Implementing Graphs Warning This page stays here for historical reasons and it may contain outdated or incorrect information. Change notes: 2/22/98, 3/2/98, 12/4/00: This version of this essay fixes several bugs in the code. 6/10/19: Retraction of find_shortest_path as "nearly optimal". 8/11/19: Fix accidental usage of find_graph() instead of find_path() Copyright (c) 1998, 2000, 2003, 2019 Python Software Foundation. All rights reserved. License...

  • Release – Python 3.12.0a7

    Version: None

    Released: April 4, 2023

    This is an early developer preview of Python 3.12. Major new features of the 3.12 series, compared to 3.11 Python 3.12 is still in development. This release, 3.12.0a7 is the seventh and final alpha release of 3.12. Alpha releases are intended to make it easier to …

  • Release – Python 3.12.0rc1

    Version: None

    Released: Aug. 6, 2023

    This is the first release candidate of Python 3.12.0 This release, 3.12.0rc1, 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 …

Python language documentation

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