Notice: While JavaScript is not essential for this website, your interaction with the content will be limited. Please turn JavaScript on for the full experience.

Search Python.org

Results

  • 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 PyCon Nigeria 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 f...

  • 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 from the …

    View Release Notes

  • 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...

  • Job - Python developer (3-5 years experience) needed on strong team

    Location: Dover, North Carolina USA

    Telecommuting: Yes

    We are looking for a mid-level Python engineer who is ready to level-up alongside some of the most senior Python developers in the industry. You’ll be the newest member of a tight-knit squad in the Healthcare space. This is not an entry-level position. We need someone who can ship production …

  • 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 test the current …

  • 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 release …

  • Release – Python 3.12.0rc2

    Version: None

    Released: Sept. 6, 2023

    This is the second release candidate of Python 3.12.0 This release, 3.12.0rc2, is the last release preview for Python 3.12. There will be no ABI changes from this point forward in the 3.12 series. The intent is for the final release of 3.12.0, scheduled for Monday, 2023-10-02, to be …

  • Release – Python 3.12.0rc3

    Version: None

    Released: Sept. 19, 2023

    This is the third release candidate of Python 3.12.0 This release, 3.12.0rc3, is the absolutely last release preview for Python 3.12. There will be no ABI changes from this point forward in the 3.12 series. The intent is for the final release of 3.12.0, scheduled for Monday, 2023-10-02, to …

  • Python documentation by version

    Python documentation by version Some previous versions of the documentation remain available online. Use the list below to select a version to view. For unreleased (in development) documentation, see In development versions. Python 3.14.0, documentation released on 7 October 2025. Python 3.13.9, documentation released on 14 October 2025. Python 3.13.8, documentation released on 7 October 2025. Python 3.13.7, documentation released on 14 August 2025. Python 3.13.6, documentation released on 6...

  • Parade of the PEPs

    Parade of the PEPs Parade of the PEPs To start off Developer's Day at the Python10 conference I gave a keynote ending in what I dubbed "the parade of the PEPs". It was a brief overview of all open PEPs, where I gave my highly personal and subjective opinion for each PEP. Later, I realized that this might have been of interest to other developers. I didn't take notes at the conference, so below is a different set of comments that I created from scratch during a single two-hour sitt...

  • Job - Privacy Engineer, Data Privacy Lab

    Location: Berkeley, CA United States

    CEGA seeks a talented Privacy Engineer to support the Center’s new Data Privacy Lab, which explores how privacy-enhancing technologies (PETs) can enable data sharing, research, and innovation in LMICs. Through a series of real-world collaborations with partner organizations, the Lab will develop and deploy PETs in LMIC settings, using these …

  • Support Python in 2022!

    Support Python in 2022! It's our annual year-end PSF fundraiser and membership drive. There are two ways to join in: Donate to the PSF! Every dollar makes a difference. (Does every dollar also make a kitten somewhere purr? We make no promises, but maybe you should try, just in case?) DONATE TODAY Become a Supporting member! When you sign up as a Supporting Member of the PSF, you become a part of the PSF and help us sustain what we do with your annual support. You can sign up...

  • Release – Python 2.3.0

    Version: None

    Released: July 29, 2003

    This is 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 …

    View Release Notes

  • Job - Tech Leader

    Location: Remote, Remote Remote

    Telecommuting: Yes

    Senior Python Developer interested in filling the role of Tech Leader of a small but growing team. Please only apply using the form linked on this page.

  • Release – Python 3.12.5

    Version: None

    Released: Aug. 6, 2024

    This is the fifth 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. 3.12.5 is the latest maintenance release, containing more than 250 bugfixes, build improvements and documentation changes since 3.12.4. This version of …

    View Release Notes

  • Release – Python 3.12.8

    Version: None

    Released: Dec. 3, 2024

    This is the eighth maintenance release of Python 3.12 Python 3.12.8 is the latest maintenance release of Python 3.12, containing more than 250 bug fixes, build improvements and documentation changes since 3.12.7. Security content in this release gh-126623: Upgraded libexpat to 2.6.4 to fix CVE-2024-50602. gh-124651: Properly …

    View Release Notes

  • Towards a Standard Parser Generator

    ...a] are a primary application for XPath expressions, and since many short expressions occur in a typical XSLT style sheet, it is desirable that the parser is efficient. It does not need to be super fast, though, since parsing of the style sheet is only a small portion of the complete transformation process. Ideally, no external C modules are required for the parser, to simplify installation of a generated parser. If C modules are required, then parsers whose C mod...

Python language documentation

If you didn't find what you need, try your search in the Python language documentation.