An excellent book on the subject is Brian Okken's Python Testing with pytest, published by Pragmatic Programmers. He also has many other resources, about pytest and code testing in general, here.

Improve your Python testing even more. In my last two articles, I introduced pytest, a library for testing Python code (see "Testing Your Code with Python's pytest" Part I and Part II). pytest has ...

Python programming: Microsoft's latest beginners' course looks at developing for NASA projects Microsoft and NASA offer some ideas about how you could apply Python for space exploration.