A discussion about mocking in Python with the original contributor of unittest.mock, Michael Foord. Of course we discuss mocking and unittest.mock. We also discuss: * testing philosophy * unit testing and what a unit is * TDD * where Michael's towel is, and what color Micheal was instrumental in the building of testing tools for Python, and continues to be a pragmatic source of honest testing philosopy in a field that has a lot of contradictory information. Special Guest: Michael Foord.