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  • Bugs in Python 2.3.2

    ...inning of a line in the /etc/group or /etc/passwd file to indicate NIS/YP or LDAP consultation. The bugs may also be related to duplicate id in these files. See SourceForge bug reports number <a href="http://python.org/sf/775964">775964</a> and <a href="http://python.org/sf/779218">779218</a>.</li> System Message: WARNING/2 (<string>, line 62); backlink Inline emphasis start-string without end-string. <li>There have been some repor...

  • Release – Python 3.9.12

    Version: None

    Released: March 23, 2022

    This is the twelfth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.12, 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. This is …

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  • Foreword for "Programming Python" (2nd ed.)

    ...in detail, will have to span several Python releases, and involves gradually increasing pressure on Python programmers (first through documentation, then through deprecation warnings, and eventually through errors) to change their code. By the way, a framework for issuing warnings will be introduced as part of Python 2.1. Sorry, Mark! So, don't expect the announcement of the release of Python 3000 any time soon. Instead, one day you may find that you are _already_ using Python 3000 ...

  • Release – Python 3.9.14

    Version: None

    Released: Sept. 6, 2022

    This is a security release of Python 3.9 Note: The release you're looking at is Python 3.9.14, a security 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 …

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  • Python Patterns - An Optimization Anecdote

    ...ing concatenation functions in the string module that are implemented in C. In particular, string.joinfields(list_of_strings, delimiter) concatenates a list of strings, placing a delimiter of choice between each two strings. Nothing stops us from concatenating a list of characters (which are just strings of length one in Python), using the empty string as delimiter. Lo and behold: import string def f6(list): return string.joinfields(map(chr, list), "") Th...

  • Towards a Standard Parser Generator

    ...ing process requires the complete input. For XPath, this causes no problems, since the input is typically small, and completely provided in the Python source code of the application, or in the XSLT style sheet. When experimenting with various parsers, adjusting the grammar definition to each parser and fitting in the semantic actions was somewhat time-consuming. Thus, a single hand-written scanner would simplify adjustment to various parser generators. On the other hand, it introduced ...

  • Release – Python 3.8.14

    Version: None

    Released: Sept. 6, 2022

    This is a security release of Python 3.8 Note: The release you're looking at is Python 3.8.14, a security bugfix release for the legacy 3.8 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 …

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  • Release – Python 3.9.10

    Version: None

    Released: Jan. 14, 2022

    This is the ninth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.10, 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. Major new …

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  • 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 …

  • Release – Python 3.9.7

    Version: None

    Released: Aug. 30, 2021

    This is the seventh maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.7, 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 …

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  • Release – Python 3.14.0b1

    Version: None

    Released: May 7, 2025

    Only one day late, welcome to the first beta! This is a beta preview of Python 3.14 Python 3.14 is still in development. This release, 3.14.0b1, is the first of four planned beta releases. Beta release previews are intended to give the wider community the opportunity to …

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  • 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 …

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  • Release – Python 3.9.0a6

    Version: None

    Released: April 28, 2020

    This is an early developer preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0a6 is the last out of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test …

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  • Release – Python 3.12.6

    Version: None

    Released: Sept. 6, 2024

    This is the sixth 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. 3.12.6 is the latest maintenance release, containing about 90 bugfixes, build improvements and documentation changes since 3.12.5. This is an …

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  • Release – Python 3.9.5

    Version: None

    Released: May 3, 2021

    This is the fifth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.5, 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 …

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  • Python Software Foundation: Press Release 19-Dec-2003

    ...and multi-threading High-level dynamic data typing and very late binding Tight integration with C, C++, and Java modules May be compiled to Java byte code for use in any JVM String and regular expression processing Extensive XML and web services support HTTP, FTP, SMTP, POP, IMAP, NNTP, telnet, and other IP protocols HTML, MIME, base64, binhex, uuencode, and other internet data handling GUI development and multimedia services Unit testing, profiling, and documentation generation Availa...

  • 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 3.11.7

    Version: None

    Released: Dec. 4, 2023

    This is the seventh maintenance release of Python 3.11 Python 3.11.7 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 …

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  • Comparing Option-Parsing Libraries

    ...ing Option-Parsing Libraries NOTE: this page is present for historical purposes only. The getopt-sig is retired, and Optik was added to the Python standard library (as optparse) in Python 2.3. (It was checked in to Python's CVS tree in November 2002, and first released in July 2003.) Since I proposed Optik for the Python standard library, a number of other option-parsing libraries have come to light. I'm trying to evaluate them by implementing the same real-world command-li...

  • Release – Python 3.9.4

    Version: None

    Released: April 4, 2021

    This is the fourth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.4, 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. Python 3.9.4 …

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