openSUSE:Leap:42.3 openSUSE Leap 42.3 https://download.opensuse.org/distribution/leap/42.3/repo/oss/ python3-mock A Python Mocking and Patching Library for Testing mock is a Python module that provides a core Mock class. It removes the need to create a host of stubs throughout your test suite. After performing an action, you can make assertions about which methods / attributes were used and arguments they were called with. You can also specify return values and set needed attributes in the normal way.