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

  • Python Success Stories

    ...cations are rarely CPU bound, and simply do not need the intensive performance that the fastest languages can give you. For interactive desktop applications, the speed difference between C# and IronPython would rarely be discernible by the user. Some programs do require significant CPU performance, either because they are crunching large data sets or because they must scale across many users on a server. In such a project, it is often a very small proportion of the code which actually requires t...

  • Ancient Releases

    ...cient Releases Andrew Dalke was clever and persistent enough to scrape Python 0.9.1 out of the Usenet alt.sources archives and assemble a compressed tarball. It's here mostly as a historical relic. If you want a compiled binary (on Linux) you can install it with conda (ideally in its own conda environment): conda install -c davidmertz python=0.9 Skip Montanaro has created a GitHub repository of Python 0.9.1 source.

  • Matching Donations

    ...ch is a public charity classified as exempt under section 501(c)(3) of the Internal Revenue Code. How to donate and have your company match In a few simple steps, you can see if your company offers a matching gift program. Make a contribution to the PSF here. Check with your company's Human Resources or Accounting department about matching gift programs for 501(c)(3) nonprofits like the Python Software Foundation. Your company's Human Resources or Accounting Department will l...

  • Release – Python 3.9.3

    Version: None

    Released: April 2, 2021

    This is the third maintenance release of Python 3.9 NOTE: The release you're looking at has been recalled due to unintentional breakage of ABI compatibility with C extensions built in Python 3.9.0 - 3.9.2. Details in bpo-43710. Please use Python 3.9.4 or newer instead. Python 3.9.3 is an …

    View Release Notes

  • Release – Python 3.13.0rc3

    Version: None

    Released: Oct. 1, 2024

    This is the third release candidate of Python 3.13.0 This release, 3.13.0rc3, is the final release preview (no really) of 3.13. This release is expected to become the final 3.13.0 release, barring any critical bugs being discovered. The official release of 3.13.0 is now scheduled for Monday, 2024-10-07. This …

    View Release Notes

  • Python Success Stories

    ...ct family, which focuses on the Tower and Airport Tools segment of Air Traffic Control. These tools are used by air traffic controllers to track weather conditions, control runway lighting, and to monitor and control navigational aid instruments. TAPtools® products display runway and weather conditions for air traffic controllers managing the approach of incoming aircraft Zoom in A Brief History One of the problems in developing air traffic control solutions is that each customer's unique a...

  • Python Software Foundation Public Records

    ...c Records Incorporation Here is a transcript of the Articles of Incorporation. Bylaws Here are the PSF Bylaws. Board of Directors PSF Board Members & Officers Resolutions Meeting Minutes Python Software Foundation Policies: Conflict of Interest Policy Whistleblower Policy Python.org Email Policy PSF Staff Current staff IRS recognition of tax exempt status The PSF is a United States 501(c)(3) corporation domiciled in Delaware. Final determination letter from the IRS, May...

  • Python Success Stories

    ...consistent use of a few basic concepts, like namespaces, help to make Python code readable and maintainable. Extensive and easy to use introspection facilities make Python easy to learn interactively by discovering its capabilities, including documentation, from the command prompt. Python is readily extensible in C or C++, so it is easy to incorporate non-Python modules into an application. Python has played an important role in the success of LivingLogic AG, and will continue to be the basis ...

  • Release – Python 3.7.0a1

    Version: None

    Released: Sept. 19, 2017

    This is an early developer preview of Python 3.7 Major new features of the 3.7 series, compared to 3.6 Python 3.7 is still in development. This releasee, 3.7.0a1 is the first of four planned alpha releases. Alpha releases are intended to make it easier to test the current state of …

    View Release Notes

  • Release – Python 3.14.0a4

    Version: None

    Released: Jan. 14, 2025

    Hello, three dot fourteen dot zero alpha four! This is an early developer preview of Python 3.14 Major new features of the 3.14 series, compared to 3.13 Python 3.14 is still in development. This release, 3.14.0a4, is the fourth of seven planned alpha releases. Alpha releases are intended to make …

    View Release Notes

  • Release – Python 3.14.0b3

    Version: None

    Released: June 17, 2025

    It's 3.14 beta 3! https://www.python.org/downloads/release/python-3140b3/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b3, is the third of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and …

    View Release Notes

  • Highlights: Python 2.4

    ...ccepts keyword arguments cmp, key and reverse sorted() - a new builtin sorted() acts like an in-place list.sort() but can be used in expressions, as it returns a copy of the sequence, sorted. string methods - strings gained an rsplit() method, and the string methods ljust(), rjust() and center() accept an argument to specify the fill character. eval() now accepts any form of object that acts as a mapping as its argument for locals, rather than only accepting a dictionary. There's all sorts of n...

  • Python Humor

    ...Conspiracy Theory For What? Tasty Slices Python Block Delimited Notation Parsing Explained Bad Habits Nolo Contendre Fractional Winkery Eloquent Appliances The Power of Generalization Fanatically Pragmatic Forseen Consequences Judicious Application of Scant Fudiciary Resources Neutral testimony... Guido Speedo Python vs. Perl according to Yoda The Zen of Python Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated....

  • 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 based locale PEP 539 …

    View Release Notes

  • [PYTHON MATRIX-SIG] FAQ

    ...cs.mit.edu/pub/jjh/NumericalPython-0.36.tar.gz This is the latest version. New versions will be made available atthis location. 3) Is there any documentation? There's incomplete online documentation written by David Ascher for acourse he taught using Numerical Python at: http://starship.python.net/~da/Python/Numeric/ There's a paper soon to be published in Computers and Physics writtenby Dubois, Hinsen and Hugunin at: ftp://ftp-icf.llnl.gov/pub/basis/numerical_python.ps There&#...

  • Python Software Foundation: Press Release 9-Mar-2005

    ...ct and releases of their CollabNet Enterprise Edition product. He also worked at Microsoft as a Development Manager, in the Commerce Server and Site Server groups. Greg was a co-founder and the Corporate Technologist of eShop, one of the first electronic commerce software companies, before its acquisition by Microsoft. In Greg's spare time, he works on many open source projects, such as Subversion, WebDAV, and Python. He also works on Apache projects and is the current Chairman of t...

  • Release – Python 2.2.1

    Version: None

    Released: April 10, 2002

    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 Software Foundation: Minutes of Board of Directors Meeting (May 14, 2002)

    ...cussion about the conference organized by Yet Another Society (YAS). Guido reports that Adam Turoff has not responded to Email in this matter, and that the status of the conference is uncertain. The board discusses conference committees. Guido volunteers to head a Python11 committee, David volunteers for the YAS conference. Jeremy suggest that there should be a single conference committee. There is discussion, then agreement to continue discussion next month. 8. Adjour...

  • Python Distutils-SIG: Proposed User Interface

    ...cooperation with the distutils modules) and the actions corresponding to each command: make_blib If it doesn't already exist, create a mockup installation tree, blib/, under the current directory. blib/ would contain directories for pure Python code (non-architecture-specific, or shared) and compiled code (architecture-specific), modelled after the directories in the system Python library on the current machine (which are d...

  • What's New In Python 3.0

    ...code strings to deal with non-English locales. Issue #1587: Added instancemethod wrapper for PyCFunctions. The Python C API has gained a new type PyInstanceMethod_Type and the functions PyInstanceMethod_Check(o), PyInstanceMethod_New(func) and PyInstanceMethod_Function(im). Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE are now enough to print the corresponding list of objects considered by the garbage collecto...

Python language documentation

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