What does every new developer do when they are first learning to program? They print out strings to their terminal. It's how we learn! But printing out to the terminal isn't what you do with most professional applications. 

In those cases, you log in. Sometimes, you log into multiple locations at once. These logs may serve as an audit trail for compliance purposes or help the engineers debug what went wrong.

Python Logging teaches you how to log in the Python programming language. Python is one of the most popular programming languages in the world. Python comes with a logging module that makes logging easy.