Connor and Noah Barthe, aged 7 and 5, are believed to have been killed by a python that escaped a pet store in Campbelton, N.B. They were found dead on Monday Aug. 5, 2013.

In this video, I'm going to teach you how to write unit tests in Python using a module called Pytest. It's a skill you'll need to know if you write code in Python, and fortunately, it's relatively ...