A Python module is an external class or set of functions that exist outside the main file of your program. This can be something that you built yourself, or it can be provided by the community.

Part of this flexibility comes from its built-in module sets that bring a powerful toolbox of operations and data structures. The os module, in particular, helps Python programmers interact with ...

You can also use Python’s built-in tooling to monitor your program ... and how to use the modules available in the standard library and elsewhere to control memory use and garbage collection.