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  • Unifying types and classes in Python 2.2

    ...globals dictionaries for the exec statement or the built-in function eval(): >>> print a.keys() [1, 2] >>> exec "x = 3; print x" in a 3 >>> print a.keys() ['__builtins__', 1, 2, 'x'] >>> print a['x'] 3 >>> However, our __getitem__() method is not used for variable access by the interpreter: >>> exec "print foo" in a Traceback (most recent call last): File "<stdin>", line 1, in ? File "<string>", line 1, in...

  • Unifying types and classes in Python 2.2

    ...globals dictionaries for the exec statement or the built-in function eval(): >>> print a.keys() [1, 2] >>> exec "x = 3; print x" in a 3 >>> print a.keys() ['__builtins__', 1, 2, 'x'] >>> print a['x'] 3 >>> However, our __getitem__() method is not used for variable access by the interpreter: >>> exec "print foo" in a Traceback (most recent call last): File "<stdin>", line 1, in ? File "<string>", line 1, in...

  • Unifying types and classes in Python 2.2

    ...globals dictionaries for the exec statement or the built-in function eval(): >>> print a.keys() [1, 2] >>> exec "x = 3; print x" in a 3 >>> print a.keys() ['__builtins__', 1, 2, 'x'] >>> print a['x'] 3 >>> However, our __getitem__() method is not used for variable access by the interpreter: >>> exec "print foo" in a Traceback (most recent call last): File "<stdin>", line 1, in ? File "<string>", line 1, in...

  • Unifying types and classes in Python 2.2

    ...globals dictionaries for the exec statement or the built-in function eval(): >>> print a.keys() [1, 2] >>> exec "x = 3; print x" in a 3 >>> print a.keys() ['__builtins__', 1, 2, 'x'] >>> print a['x'] 3 >>> However, our __getitem__() method is not used for variable access by the interpreter: >>> exec "print foo" in a Traceback (most recent call last): File "<stdin>", line 1, in ? File "<string>", line 1, in ? NameError: name 'foo' is not defined >>> ...

  • Python Success Stories

    Python Success Stories First published in Linux Journal, May 2000. Copyright 2000 Specialized Systems Consultants, Inc. All rights reserved. Introduction My first look at Python was an accident, and I didn't much like what I saw at the time. It was early 1997, and Mark Lutz's book Programming Python from O'Reilly & Associates had recently come out. O'Reilly books occasionally land on my doorstep, selected from among the new releases by some mysterious benefactor inside the organization u...

  • Frank Willison Memorial Award

    Frank Willison Memorial Award Contributions can encompass so much more than code. A successful software community requires time, dedication, communication, and education as well as elegant code. With the Frank Willison Memorial Award, we hoped to acknowledge all of those things. —Tim O'Reilly The Frank Willison Memorial Award for Contributions to the Python Community is given annually to a person judged to have made an outstanding contribution to the Python community. The award was ...

  • 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...

  • Python 2.4.1 - Release Notes

    Python 2.4.1 - Release Notes (editors: check NEWS.help for information about editing NEWS using ReST.) What's New in Python 2.4.1 final? Release date: 30-MAR-2005 Core and builtins Move exception finalisation later in the shutdown process - this fixes the crash seen in bug #1165761 Tests SF patch 1167316: doctest.py fails self-test if run directly. Build SF patch 1171767: Darwin 8's headers are anal about POSIX compliance, and linking has changed (prebinding is now deprecated, and l...

  • Computer Programming for Everybody

    Computer Programming for Everybody Computer Programming for Everybody This is the main text of a funding proposal that we sent to DARPA in January 1999. In August 1999, we submitted a revised version of the proposal. Please look at the EDU-SIG home page (Python in Education Special Interest Group). This is where the current project status is described and/or will be discussed, and where you'll find pointers to more resources. Note:I have made one change to the text of the propos...

  • 2018 PSF Annual Report

    2018 PSF Annual Report #wrapper { overflow: hidden; position: relative; } .resize-active * { -webkit-transition: none; 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 { -webkit-transition: color .3s ease-in-out; transiti...

  • 2012-07-16 PSF Board Meeting Minutes

    2012-07-16 PSF Board Meeting Minutes The Python Software Foundation Minutes of a Regular Meeting of the Board of Directors July 16, 2012 A regular meeting of the Python Software Foundation ("PSF") Board of Directors was held over Group Video Calling via Skype and Internet Relay Chat beginning at 16:00 UTC, on 16 July 2012. Van Lindberg presided over the meeting. Pat Campbell prepared the minutes. All votes are reported in the form "Y-N-A" (in favor — opposed — abste...

  • What's New In Python 3.0

    What's New In Python 3.0 (editors: check NEWS.help for information about editing NEWS using ReST.) What's New in Python 3.0 final Release date: 03-Dec-2008 Core and Builtins Issue #3996: On Windows, the PyOS_CheckStack function would cause the interpreter to abort ("Fatal Python error: Could not reset the stack!") instead of throwing a MemoryError. Issue #3689: The list reversed iterator now supports __length_hint__ instead of __len__. Behavior now matches other reversed ite...

  • Notes

    Notes (editors: check NEWS.help for information about editing NEWS using ReST.) What's New in Python 2.4 final? Release date: 30-NOV-2004 Core and builtins Bug 875692: Improve signal handling, especially when using threads, by forcing an early re-execution of PyEval_EvalFrame() "periodic" code when things_to_do is not cleared by Py_MakePendingCalls(). What's New in Python 2.4 (release candidate 1) Release date: 18-NOV-2004 Core and builtins Bug 1061968: Fixes in 2.4a3 to ad...

  • 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 Board of Directors grant $4000 USD to the three events for Python Programmes in Abraka taking place in Abraka, Nigeria, in 2025. Approved; 10-0-0, 2025-07-16 RESOLVED, that the Python Software Foundation Board of Directors grant $4500 USD to the three PyLadies Kampala w...

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