This post explains what a Python module is and how to use it to drastically extend the capabiltiies of your code. Plus: how to make your own!

Learn how to get Python up and running on Windows, macOS, or Linux—and avoid the biggest pitfalls along the way.

Editable installs let you do exactly this. To install a Python package in editable mode, all you need to do is use the -e flag, and pass the path to the package’s directory: ...