What?
Linux: Install with whatever package manager you use
Windows: download installer, run installer
Mac: Idk, same as Windows I'd guess
Then type python or python3 into your command line to check of it works. Run scripts from command line, too (to prevent stuff like file associations or shebangs)
Any version >=3.10 is fine, the differences don't matter for a basic course. Venv or even pip is not needed either (again, basic course).
That sounds like it has a direct to video adaption starring Steven Seagal.