I'm happy to announce partial 1.0; a module to implement partial classes in Python. It is available from http://cheeseshop.python.org/pypi/partial/1.0 A partial class is a fragment of a class definition; partial classes allow to spread the definition of a class over several modules. One location serves as the original definition of the class. To extend a class original_module.FullClass with an additional function, one writes from partial import * import original_module class ExtendedClass(partial, original_module.FullClass): def additional_method(self, args): body more_methods This module is licensed under the Academic Free License v3.0. Please send comments and feedback to martin@v.loewis.de