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  • Proposed Improvements to Module Cleanup

    ...ived and some more thinking, I've changed this a bit since my web posting on this subject. Significant Changes are indicated in the text by [italicized remarks in square brackets]. Algorithms When a Python interpreter is deleted, its variables and modules are "cleared carefully" in a partially specified order. The operation "clear carefully" is defined below; it effectively deletes the module's variables in a partially specified order. M1. Before anything else, the followi...

  • Python 2.2

    ...interested in Mark Hammond's win32all, a collection of Windows-specific extensions including COM support and Pythonwin, an IDE built using Windows components. Update (2002/04/23): Windows users should download a new UNWISE.EXE from Wise that fixes a bug which could cause the uninstaller to disappear in some circumstances. Just drop it over the old uninstaller, which will be at C:\Python22\UNWISE.EXE unless you chose a different directory at install time. Macintosh users can find Pyt...

  • Python Success Stories

    ...Introduction Internet connectivity is omnipresent, finding new applications and giving old designs a new lease on life. In this age of small IC devices boasting TCP/IP stacks and wireless connectivity, one no longer needs a standalone PC to harness the Web. VAHNZ Controls developed its eBukal[1] remote alarm device to leverage their knowledge of microcontroller interfacing and Internet protocols, creating an innovative solution for the field of building automation. Remote Event Dial-up Interne...

  • PSF participation in the 2007 Google Summer of Code

    ...in about the coding ability of their students, I thought it might be worth trying next year. It also provides a first test of how dedicated the applicant is. Some projects did Skype or IRC interviews to assess the student's communication ability. Again, I'm not sure PSF projects had issues that this would have solved but I still liked it as an idea. Next year, if I'm admin, I'd really like not to be a mentor. I think there would be value in me being solely focused on admin (in part to implement ...

  • Debugging Reference Count Problems

    ...inding a function that's not in the manual, reading its source usually gives a clue.) So says I (beginning to talk to self), why not print the environment in which the functions are being run to see what's going on... no sooner said than done. And the error disappeared! Take the printing line out -- error reappears (iterate three or four times in disbelief). This is a typical example of Heisenberg's law applied to programs: you can't observe something without influencing it. ...

  • Release – Python 3.9.0a4

    Version: None

    Released: Feb. 26, 2020

    This is an early developer preview of Python 3.9 Python 3.9 is still in development. This release, 3.9.0a4 is the fourth 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 the release …

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  • Release – Python 3.9.2rc1

    Version: None

    Released: Feb. 16, 2021

    This is the release candidate of the second maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.2rc1, a 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 release …

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  • Current Pre-release Testing Versions

    ...ing Versions This is a list of the current pre-release development versions available for testing. These are preview releases, and their use is not recommended in production settings. Consider your needs carefully before using a version other than the current production versions. Please report any bugs in these versions of Python to the Python issue tracker. See here for more information on reporting issues. Python 3.14.0b4

  • 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 111 commits …

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  • Release – Python 3.8.1rc1

    Version: None

    Released: Dec. 10, 2019

    This is the release candidate of Python 3.8.1, the first maintenance release of Python 3.8 Note: The release you're looking at is Python 3.8.1rc1, a 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 …

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  • 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 …

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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 prepare their …

  • 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 166 commits …

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  • Python Style Guide

    Python Style Guide Python Style Guide Author: Guido van Rossum The style guide originally at this URL has been turned into two PEPs (Python Enhancement Proposals): PEP 8 for the main text, and PEP 257 for docstring conventions.

  • Metaclasses in Python 1.5

    ...is invoked when a Tracing instance is called, e.g. the creation of aninstance later in the example. It returns an instance of the class Instance, which is defined next. The class Instance is the class used for all instances of classes built using the Tracing metaclass, e.g. aninstance. It has two methods: The __init__ method is invoked from the Tracing.__call__ method above to initialize a new instance. It saves the class reference as an instance variable. It uses a f...

  • Release – Python 3.9.8

    Version: None

    Released: Nov. 5, 2021

    This is the eighth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.8, 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 202 commits …

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  • Release – Python 3.9.9

    Version: None

    Released: Nov. 15, 2021

    This is the ninth maintenance release of Python 3.9 Note: The release you're looking at is Python 3.9.9, an expedited 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. 3.9.9 was released …

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  • Release – Python 3.8.4rc1

    Version: None

    Released: June 30, 2020

    This is the release candidate of the fourth maintenance release of Python 3.8 Note: The release you're looking at is Python 3.8.4rc1, a 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. …

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  • Event – PyCoffee Porto Meetup

    ,

    Location: Porto i/o, Rua de Cândido dos Reis 81, Porto, Portugal

    Python Porto Meetup

  • Python Distutils-SIG: Documentation

    ...ir existing Python installation. It focusses on using the Distutils, but also covers older ways of installing Python modules and extensions. Distributing Python Modules This is for module and extension developers who want to share their efforts with the world using the Distutils. It covers writing the setup script and using it to create a source distribution and "built" (binary) distributions (thus...

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