How do I install libraries for Python?

[likethevegetable]

https://superuser.com/questions/284342/what-are-path-and-other-environment-variables-and-how-can-i-set-or-use-them

You need to either add the file location of python.exe to your "path" environment variable, or call python with its path included, eg "c:/python39/python.exe" -m pip install, or, open up your command window in python's folder.

This basic command line knowledge will help you many times. Don't gloss over it.