Notice: This page displays a fallback because interactive scripts did not run. Possible causes include disabled JavaScript or failure to load scripts or stylesheets.

≡ Menu

Search Python.org

Results

  • Release – Python 3.9.0b1

    Version: None

    Released: May 19, 2020

    This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b1, is the first of four planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their …

    View Release Notes

  • Release – Python 3.9.0b3

    Version: None

    Released: June 9, 2020

    This is a beta preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0b3, is the third of five planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their …

    View Release Notes

  • Release – Python 3.9.0rc1

    Version: None

    Released: Aug. 11, 2020

    This is the first release candidate of Python 3.9 This release, 3.9.0rc1, 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 …

    View Release Notes

  • What's new in Python 2.3

    ...in 2.3a2.) itertools - high speed, memory efficient looping constructs inspired by Haskell and SML. (New in 2.3a2.) (Some improvements in 2.3b1, including subsumption of times() into repeat(), and addition of chain() and cycle().) logging - a flexible, configurable logging package based on log4j and our own PEP 282; written by Vinay Sajip. (New in 2.3a2: warn/WARN renamed to warning/WARNING; logging module actually included in the Windows installer.) optparse - a powerful command line opti...

  • Release – Python 3.9.2

    Version: None

    Released: Feb. 19, 2021

    This is the second maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.2, a bugfix release for the legacy 3.9 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest release of 3.11.x here. We've made …

    View Release Notes

  • Release – Python 3.9.6

    Version: None

    Released: June 28, 2021

    This is the sixth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.6, a bugfix release for the legacy 3.9 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest release of 3.11.x here. There's been …

    View Release Notes

  • Release – Python 3.9.11

    Version: None

    Released: March 16, 2022

    This is the eleventh maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.11, a bugfix release for the legacy 3.9 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest release of 3.11.x here. Security content …

    View Release Notes

  • Python Internationalization-SIG

    ...ing issues relating to the internationalization of Python. At the time of writing (March 2000), internationalization (henceforth spelled as "i18n" to save typing) features are being added to Python. This sig is the primary forum for discussing those features. Topics covered include but are not limited to: Unicode support and building a library of codecs Support for locale information, date, number and time formatting Frameworks for translating and localizing GUI and Web appl...

  • Foreword for "Programming Python" (1st ed.)

    ...interpreter for the new scripting language I had been thinking about lately: a descendant of ABC that would appeal to Unix/C hackers. I chose Python as a working title for the project, being in a slightly irreverent mood (and a big fan of Monty Python's Flying Circus). Today, I can safely say that Python has changed my life. I have moved to a different continent. I spend my working days developing large systems in Python, when I'm not hacking on Python or answering Python-related e...

  • Linux RPMs for Python 2.3.4

    ...ing>, line 126) Unexpected indentation. they over-write the system python and cause problems with other Red Hat applications that expect a different version of Python? System Message: WARNING/2 (<string>, line 128) Block quote ends without a blank line; unexpected unindent. <li />A) The RPMs that start with "python2.3" are built to not interfere with the system Python. They install as "/usr/bin/python2.3" and will not conflict with the system Python unless ...

  • Python 1.6.1

    ...and ordinary strings. Changes on Windows The installer no longer runs a separate Tcl/Tk installer; instead, it installs the needed Tcl/Tk files directly in the Python directory. If you already have a Tcl/Tk installation, this wastes some disk space (about 4 Megs) but avoids problems with conflicting Tcl/Tk installations, and makes it much easier for Python to ensure that Tcl/Tk can find all its files. Note: the alpha installers don't include the documentation. The Windows installer now insta...

  • 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 …

    View Release Notes

  • Release – Python 3.9.1rc1

    Version: None

    Released: Nov. 26, 2020

    This is the release candidate of the first maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.1rc1, the release candidate of a bugfix release for the legacy 3.9 series. Python 3.11 is now the latest feature release series of Python 3. Get the latest …

    View Release Notes

  • Python 2.3.1

    ...and the bug reporting procedure. Download the release Windows users should download the Windows installer, Python-2.3.1.exe, run it and follow the friendly instructions on the screen to complete the installation. Windows users may also be interested in Mark Hammond's win32all, a collection of Windows-specific extensions including COM support and Pythonwin, an IDE built using Windows components. RPMs suitable for Redhat and source RPMs for other RPM-using operating systems are avai...

  • Release – Python 2.3.1

    Version: None

    Released: Sept. 23, 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 …

    View Release Notes

  • Release – Python 3.11.6

    Version: None

    Released: Oct. 2, 2023

    This is the sixth maintenance release of Python 3.11 Python 3.11.6 is the newest major release of the Python programming language, and it contains many new features and optimizations. Major new features of the 3.11 series, compared to 3.10 Some of the new major new features …

    View Release Notes

  • What's new in Python 1.5 and beyond

    ...ing $PYTHONHOME (see the usage message, e.g. try python -h). In most situations, the interpreter can be installed at an arbitrary location without having to recompile. The build process now builds a single library (libpython1.5.a) which contains everything except for the main() entry point. This makes life much easier for applications that embed Python. There is much better support for embedding, including threads, multiple interpreters(!), uninitialization, and access to the global interprete...

  • Release – Python 3.14.0

    Version: None

    Released: Oct. 7, 2025

    This is the stable release of Python 3.14.0 Python 3.14.0 is the newest major release of the Python programming language, and it contains many new features and optimisations compared to Python 3.13. Major new features of the 3.14 series, compared to 3.13 Some of the major …

    View Release Notes

  • Bugs in Python 2.5.2c1

    ...ink: invalid file type" or similar, you'll need to get GNU tar. Some tests may unexpectedly fail on certain platforms. Here are failures that we know (something) about and intend to fix in a following patch release. These bugs may simply be in the test suite, but they may indicate bugs in Python. test_grp and test_pwd may fail. We've had reports of this on *nix systems that use a "+" at the beginning of a line in the /etc/group or /etc/passwd file to indicate NIS/YP or LDAP ...

  • Bugs in Python 2.5.3c1

    ...ink: invalid file type" or similar, you'll need to get GNU tar. Some tests may unexpectedly fail on certain platforms. Here are failures that we know (something) about and intend to fix in a following patch release. These bugs may simply be in the test suite, but they may indicate bugs in Python. test_grp and test_pwd may fail. We've had reports of this on *nix systems that use a "+" at the beginning of a line in the /etc/group or /etc/passwd file to indicate NIS/YP or LDAP ...

Python language documentation

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