Once you know how to add and use a Python module, you will greatly extend the capabilities of the language. A Python module is an external class or set of functions that exist outside the main ...

how its garbage collection system helps optimize memory in Python programs, and how to use the modules available in the standard library and elsewhere to control memory use and garbage collection.

The py launcher is optionally installed during the setup process when you first install Python on Windows. At one point, you’ll be prompted to do so, as per the screenshots shown below.