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Improves integration between Python and C++ classes (Python 2.2)

A lightweight mechanism, named "ExtensionClass", has been developed for making Python extension types more class-like. Classes can be developed in an extension language, such as C or C++, and these classes can be treated like other python classes:

- They can be sub-classed in python, - They provide access to method documentation strings, and - They can be used to directly create new instances.

An example class shows how extension classes are implemented and how they differ from extension types.

Extension classes provide additional extensions to class and instance semantics, including:

- A protocol for accessing subobjects "in the context of" their containers. This is used to implement custom method types and environmental acquisition. - A protocol for overriding method call semantics. This is used to implement "synchronized" classes and could be used to implement argument type checking. - A protocol for class initialization that supports execution of a special '__class_init__' method after a class has been initialized.

Extension classes illustrate how the Python class mechanism can be extended and may provide a basis for improved or specialized class models.

This package is built for Python 2.2.

Package version:1.2.0zope-2.5.1-1.3


 Python Extension Classes for Debian GNU/Linux

These are the Extension Classes for Python, packaged for Debian GNU/Linux.
The sources for this package have been split off from the Zope 2.5.1

    Gregor Hoffleit <>


python-extclass (1.2.0zope-2.5.1-1.3) unstable; urgency=low

  * Use python2.3 as default python version.
  * Remove empty debhelper files.
  * Change package section to python.
  * Remove URL from description (closes: #196929)

 -- Matthias Klose <>  Wed, 13 Aug 2003 07:42:19 +0200

python-extclass (1.2.0zope-2.5.1-1.2) unstable; urgency=low

  * Use python2.2 as default python ver


This package was put together by Gregor Hoffleit

The source for this package was taken from the Zope 2.5.1 distribution,
available from

Copyright (C) 1996-1998, Digital Creations, Fredericksburg, VA, USA.  
All rights reserved.

  Redistribution and use in source and binary forms, with 

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