There's a new minor release of mock, version 0.7.2, with two bugfixes in it. * http://pypi.python.org/pypi/mock/ (download) * http://www.voidspace.org.uk/python/mock/ (documentation) * https://code.google.com/p/mock/ (repo and issue tracker) mock is a Python library for simple mocking and patching (replacing objects with mocks during test runs). mock is designed for use with unittest, based on the "action -> assertion" pattern rather than "record -> replay". The full changelog for this release is: http://www.voidspace.org.uk/python/mock/changelog.html#version-0-7-2 * BUGFIX: instances of list subclasses can now be used as mock specs * BUGFIX: MagicMock equality / inequality protocol methods changed to use the default equality / inequality. This is done through a `side_effect` on the mocks used for `__eq__` / `__ne__` The most important change is the second one, which fixes an oddity with the way equality comparisons with MagicMock work(ed). For more details on this change, and the motivation behind it, see this blog entry: http://www.voidspace.org.uk/python/weblog/arch_d7_2011_05_28.shtml#e1216 Michael Foord