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  • Known bugs in Python 2.2.1

    Known bugs in Python 2.2.1 <h2>Known bugs in Python 2.2.1</h2> <p>This page now exists only to clarify incompatibilities between Python version 2.2[.x] and versions before 2.2. <h3>Incompatibilities between Python 2.1[.x] and Python 2.2[.x]</h3> <p>The following visible differences between Python 2.2 and previous versions are intentional. <ul> <p><li>Not everything is listed here; for the full list see the <a href="http://cvs.source...

  • Incompatibilities between Python 2.1[.x] and 2.2[.x]

    Incompatibilities between Python 2.1[.x] and 2.2[.x] <h3>Incompatibilities between Python 2.1[.x] and Python 2.2[.x]</h3> <p>The following visible differences between Python 2.2 and previous versions are intentional. <ul> <p><li>Not listed here are various deprecated modules and features that may issue warnings: the warnings shouldn't affect the correct execution of your program, and they can be disabled with a command line option or programmatically; see th...

  • July 2012 PSF Members' Meeting Minutes

    July 2012 PSF Members' Meeting Minutes The Python Software Foundation Minutes of the July 2012 Members' Meeting July 3, 2012 The Python Software Foundation (the "PSF") held a member's meeting on July 3, 2012 18:00 CEST at EuroPython, Florence, Italy. Marc-Andre Lemburg presided over the meeting. Contents 1   Attendance 2   Greetings & Announcements 2.1   PSF Chairman Update 3   Board Report 3.1  &nb...

  • PSF Distinguished Service Awards

    PSF Distinguished Service Awards Contents Introduction 2024 2022 2021 2018 2017 2015 2014 2012 Introduction Building on the ideals of the Foundation's Community Service Award, the Distinguished Service Award is an offer of recognition for sustained exemplary contributions to the Python community. The Foundation's highest award is given for actions which carry significant impact that shapes the Python world, whether through contributions of code, efforts in community action, or otherwise. ...

  • Incompatibilities between Python 2.1[.x] and 2.2[.x]

    Incompatibilities between Python 2.1[.x] and 2.2[.x] <h3>Incompatibilties between Python 2.2.2 and Python 2.2.3</h3> <p>The following visible differences between Python 2.2.2 and Python 2.2.3 are intentional. <ul> <p><li>It is no longer possible to use object.__setattr__ to circumvent the restrictions on setting attributes of type objects. <p><li>list.extend() works with any iterable. <p><li>In pdb, you can no longer enable breakpo...

  • Python Success Stories

    Python Success Stories Introduction The Blind Audio Tactile Mapping System (BATS) seeks to provide access to maps for the blind and visually impaired. Our goal is to devise ways to present traditionally visual information to the user's other senses. The need for this project became clear when Jason Morris came to the University of North Carolina at Chapel Hill to study Classics. Morris works at the Ancient World Mapping Center (AWMC), a foundation to advance the field of ancient studies with ...

  • Towards a Standard Parser Generator

    Towards a Standard Parser Generator Towards a Standard Parser Generator Martin v. Löwis Humboldt-Universität zu Berlin Institut für Informatik loewis@informatik.hu-berlin.de Abstract Developing parsers for "little" languages is a common task for many software developers. People have frequently requested inclusion of a specific parser generator framework into the Python library. In this paper, we compare several Python parser generators, using the XPath langua...

  • Known bugs in Python 2.2

    Known bugs in Python 2.2 <h2>Known bugs in Python 2.2</h2> <h3>Real bugs</h3> <p>These are actual bugs, and we will make fixes available as soon as we have them. (There may be other bugs that aren't generally worth knowing about; search the <a href="http://sourceforge.net/bugs/?group_id=5470">SourceForge bug tracker</a>; you can also use that to report new bugs you find, of course.) <ul> <p><li>The ftplib module's FTP class...

  • EDU-SIG: Python in Education

    EDU-SIG: Python in Education EDU-SIG: Python in Education More and more, Python is making inroads at all levels in education. Python offers an interactive environment in which to explore procedural, functional and object oriented approaches to problem solving. Its high level data structures and clear syntax make it an ideal first language, while the large number of existing libraries make it suitable to tackle almost any programming tasks. Edu-sig, through its mailing list, provides an infor...

  • 2011-03-21 PSF Board Meeting Minutes

    2011-03-21 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors March 21, 2011 A regular meeting of the Python Software Foundation ("PSF") Board of Directors was held over Internet Relay Chat beginning at 16:00 UTC, 21 March 2011. Steve Holden presided at the meeting. Pat Campbell prepared the minutes. All votes are reported in the form "Y-N-A" (in favor — opposed — abstentions; e.g. "5-1-2" mea...

  • PSF Board Resolutions

    PSF Board Resolutions The Python Software Foundation Resolutions of the Board of Directors Vote counts are of the form "4-2-1" (4 in favor — 2 opposed — 1 abstention) RESOLVED, that the Python Software Foundation approve the minutes at https://mail.python.org/archives/list/psf-important@python.org/thread/CIEQOGB4SUW4DOJ7HCBFB5JJRPTCWUMK/ as representing a true and accurate record of the October 22, 2025 meeting. Approved; 11-0-0, 2025-11-12 RESOLVED, that the Python Software...

  • Unifying types and classes in Python 2.2

    Unifying types and classes in Python 2.2 Unifying types and classes in Python 2.2 Python Version: 2.2 (For a newer version of this tutorial, see Python 2.2.3) Guido van Rossum This paper is an incomplete draft. I am soliciting feedback. If you find any problems, please write me at guido@python.org. Table of Contents Introduction Subclassing built-in types Built-in types as factory functions Introspecting instances of built-in types Static methods and class met...

  • Unifying types and classes in Python 2.2

    Unifying types and classes in Python 2.2 Unifying types and classes in Python 2.2 Python Version: 2.2.1 (For a newer version of this tutorial, see Python 2.2.3) Guido van Rossum This paper is an incomplete draft. I am soliciting feedback. If you find any problems, please write me at guido@python.org. Table of Contents Change Log Introduction Subclassing built-in types Built-in types as factory functions Introspecting instances of built-in types Static metho...

  • Unifying types and classes in Python 2.2

    Unifying types and classes in Python 2.2 Unifying types and classes in Python 2.2 Python Version: 2.2.2 (For a newer version of this tutorial, see Python 2.2.3) Guido van Rossum This paper is an incomplete draft. I am soliciting feedback. If you find any problems, please write me at guido@python.org. Table of Contents Change Log Introduction Subclassing built-in types Built-in types as factory functions Introspecting instances of built-in types Static metho...

  • Unifying types and classes in Python 2.2

    Unifying types and classes in Python 2.2 Python Version: 2.2.3 Guido van Rossum This paper is an incomplete draft. I am soliciting feedback. If you find any problems, please write me at guido@python.org. Table of Contents Change Log Introduction Subclassing built-in types Built-in types as factory functions Introspecting instances of built-in types Static methods and class methods Properties: attributes defined by get/set methods Method resolution ord...

  • Python Success Stories

    Python Success Stories Introduction This article shows how I integrated Python, COM, DocBook, OpenJade, and Word together to create a documentation tool for BEACON, a visual programming environment. This documentation tool was used for code reviews in the software development methodology at my company, and led to significant (>$1M) in cost savings. Before starting this project, I had no prior experience using SGML, XML, or other document markup languages. It was only when I was perilously ...

  • PSF Trademark Usage Policy

    ...executables -- Allowed if used to refer to the Python programming language. Commercial users should obtain permission before using derived logos as icons for proprietary file formats. Use of derived logos for user groups and conferences -- Allowed if used to refer to the Python programming language. Commercial user groups and for-profit conferences require permission from the PSF. Use of derived logos for freely distributed 3rd-party modules or tools -- Allowed if for the Python programming la...

  • Python Software Foundation: Vendor Policies

    Python Software Foundation: Vendor Policies Introduction Employee vs contractor Purpose Factors Form SS-8 Vendor Definition Invoices Invoice Contents Invoice Example Payment Terms Approval Process OFAC Sanctioned Countries Vendor Tax Documents Tax Withholding Domestic Individuals and Organizations Tax Withholding Form 1099 Foreign Individuals and Organizations Tax Withholding United States-Foreign Country Tax Treaties US Tax Identification Numbers Obtaining a US ITI...

  • 2020 PSF Annual Report

    2020 PSF Annual Report #wrapper { overflow: hidden; position: relative; } .resize-active * { transition: none; } h1, .h1 { line-height: 34px; margin-bottom: 27px; } h2, .h2 { color: #3776ab; line-height: 26px; display: block; } p, blockquote, time, em { line-height: 28px; } time { font-style: italic; } p { margin-bottom: 24px; text-align: justify; } a { transition: color 0.3s ease-in-out; text-decoration: none; } .section-head...

  • Computer Programming for Everybody

    Computer Programming for Everybody Computer Programming for Everybody This is the text of a revised funding proposal that we sent to DARPA in August 1999. In March, we heard that at least an earlier version of the proposal was accepted by DARPA; the work has begun late 1999 and will hopefully last two years, although we've only received funding for the first year (through October 2000). We're keeping our fingers crossed for the rest. Unfortunately, the move of the Python developm...

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