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  • FSF statement

    ...Definition list ends without a blank line; unexpected unindent. </blockquote>

  • FSF statement

    ...Definition list ends without a blank line; unexpected unindent. </blockquote>

  • Mission

    ...Definition. Holds Python's intellectual property rights for releases 2.1 and following. Seeks to obtain the intellectual property rights for Python releases prior to 2.1, for relicensing under the PSF Python license, to relieve the legal burden on Python's users. The PSF may also seek rights to other Python-related software for relicensing under a PSF license. Protects the Python name, and the names, service marks and trademarks associated with all other intellectual property held by the PSF. S...

  • Unifying types and classes in Python 2.2

    ...classes class M1(type): ... class M2(M1): ... class M3(M2): ... class M4(type): ... # Regular classes class C1: __metaclass__ = M1 class C2(C1): __metaclass__ = M2 class C3(C1, C2): __metaclass__ = M3 class D(C2, C3): __metaclass__ = M1 class C4: __metaclass__ = M4 class E(C3, C4): pass For class C2, the constraint is satisfied because M2 is a subclass of M1. For class C3, it is satisfied because M3 is a subclass of both M1 and M2. For class D,...

  • Unifying types and classes in Python 2.2

    ...classes are more accessible and less dangerous. Terminology-wise, a metaclass is simply "the class of a class". Any class whose instances are themselves classes, is a metaclass. When we talk about an instance that's not a class, the instance's metaclass is the class of its class: by definition, x's metaclass is x.__class__.__class__. But when we talk about a class C, we often refer to its metaclass when we mean C.__class__ (not C.__class__.__class__, which would be a meta-metaclass; th...

  • Unifying types and classes in Python 2.2

    ...classes are more accessible and less dangerous. Terminology-wise, a metaclass is simply "the class of a class". Any class whose instances are themselves classes, is a metaclass. When we talk about an instance that's not a class, the instance's metaclass is the class of its class: by definition, x's metaclass is x.__class__.__class__. But when we talk about a class C, we often refer to its metaclass when we mean C.__class__ (not C.__class__.__class__, which would be a meta-metaclass; th...

  • Unifying types and classes in Python 2.2

    ...classes are more accessible and less dangerous. Terminology-wise, a metaclass is simply "the class of a class". Any class whose instances are themselves classes, is a metaclass. When we talk about an instance that's not a class, the instance's metaclass is the class of its class: by definition, x's metaclass is x.__class__.__class__. But when we talk about a class C, we often refer to its metaclass when we mean C.__class__ (not C.__class__.__class__, which would be a meta-metaclass; th...

  • Current Pre-release Testing Versions

    Current Pre-release Testing 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 3.14.0rc2

  • Known bugs in Python 2.2.1

    ...classic classes and new-style classes</h3> <p>The following differences between classic and new-style classes may require attention when you are converting a classic class to a new-style class. Since previous versions of Python don't support new-style classes, these can't be considered to be real bugs, but since we've tried very hard to make the behavior of new-style classes backwards compatible, it's important to note these differences. (There are of course many more differences th...

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

    ...classic classes and new-style classes</h3> <p>The following differences between classic and new-style classes may require attention when you are converting a classic class to a new-style class. Since previous versions of Python don't support new-style classes, these can't be considered to be real bugs, but since we've tried very hard to make the behavior of new-style classes backwards compatible, it's important to note these differences. (There are of course many more differences th...

  • Linux RPMs for Python 2.2.3

    ...Definition list ends without a blank line; unexpected unindent. </ul> <li />These RPMs are built from the python.org .spec file: <ul> <li /><a href="/ftp/python/2.2.3/rpms/redhat-9/python2-2.2.3-1.i386.rpm">python2-2.2.3-1.i386.rpm</a> (Red Hat 9 base RPM, 6232077 bytes) <li /><a href="/ftp/python/2.2.3/rpms/redhat-9/python2-devel-2.2.3-1.i386.rpm">python2-devel-2.2.3-1.i386.rpm</a> (Red Hat 9 development RPM, 579465 byte...

  • Python Software Foundation: Minutes of Feb. 2002 Member Meeting

    ...Definition list ends without a blank line; unexpected unindent. </ul> <p>David Abrahams was present and presented an application to the secretary at the meeting. <p>(Note that Charles Waldman is already a PSF member, a point that was overlooked at the meeting.) <p>Upon further discussion, several corporations were invited to be sponsor members of the Corporation. Upon motion by Guido van Rossum, seconded by Ka-Ping Yee, it was unanimously <p>RESOLVED, that the fol...

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

    ...classic classes and new-style classes</h3> <p>The following differences between classic and new-style classes may require attention when you are converting a classic class to a new-style class. Since previous versions of Python don't support new-style classes, these can't be considered to be real bugs, but since we've tried very hard to make the behavior of new-style classes backwards compatible, it's important to note these differences. (There are of course many more differences th...

  • MacPython 2.2.1

    ...Definition list ends without a blank line; unexpected unindent. </pre>

  • Metaclasses in Python 1.5

    ...Class1. We now (manually) instantiate MetaClass1 once to get an empty special base class: BaseClass1 = MetaClass1("BaseClass1", (), {}) We can now use BaseClass1 as a base class in a class statement: class MySpecialClass(BaseClass1): i = 1 def f(s): pass At this point, MySpecialClass is defined; it is a metainstance of MetaClass1 just like BaseClass1, and in fact the expression ``BaseClass1.__class__ == MySpecialClass.__class__ == MetaClass1'' yields true. W...

  • Towards a Standard Parser Generator

    ...class of the generated parser class: class MyXPath(XPath): ... UNION = pyxpath.UNION_OPERATOR ... def nop(self, operator, left, right): return self.factory.createNumericOperator(operator, left, right) This class can go into the grammar definition file. Like YACC, YAPPS supports custom code before and after the grammar definition. YAPPS parsers integrate with the scanner through a Scanner object, which is passed...

  • Python Success Stories

    ...class tree: from DocBook import DocBook class ItalicIndexPhrase (DocBook.Rules.Phrase): "italic indexible text phrase" TITLE = DocBook.Rules.Phrase def __init__ (self, text): DocBook.Rules.Phrase.__init__ (self, 'xe', 'italic') self.data = [ text ] class NameCell (DocBook.Rules.Entry): "table row cell describing name of identifier (italic and indexible text!)" TITLE = DocBook.Rules.Entry def __init__ (...

  • Known bugs in Python 2.2

    ...classic classes and new-style classes</h3> <p>The following differences between classic and new-style classes may require attention when you are converting a classic class to a new-style class. Since previous versions of Python don't support new-style classes, these can't be considered to be real bugs, but since we've tried very hard to make the behavior of new-style classes backwards compatible, it's important to note these differences. (There are of course many more differences th...

  • Release – Python 3.6.9

    Version: None

    Released: July 2, 2019

    Note: The release you are looking at is Python 3.6.9, a security bugfix release for the legacy 3.6 series which has now reached end-of-life and is no longer supported. See the downloads page for currently supported versions of Python. The final source-only security fix release for 3.6 was 3.6.15 …

    View Release Notes

  • comp.lang.python.announce Posting Guidelines

    ...Definition", and pick one of the licenses mentioned there under "Example Licenses". You should INCLUDE YOUR E-MAIL ADDRESS in the body text of your posting or in the trailing .signature block. Please do not sign your announcement with PGP; most people would not know your public PGP key anyway and would get a warning message. Avoid excessive cross-posting. Messages that are cross-posted to several moderated news groups will usually be approved by the moderator of the first group ...

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