Libraries are collections of shared code. They're common in Python, where they're also called "modules," but they're also ...

In Python, a SyntaxError happens when the interpreter finds code that does not conform to the rules of the Python language.

Still using Excel for your data analysis? Learn how to leverage Python so you can work with larger datasets and automate repetitive tasks.

In Python, you can define functions with optional arguments — that is, arguments that you don’t need to state explicitly afterwards — by providing a default value.

Testing functions isn't hard, but how do you test user input and output? In my last article, I started looking at "pytest", a framework for testing Python programs that's really changed the way I look ...