How to open Python?

[bensan]

but this is the result I get "Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases."

Haven't used Windows for years now and my memory is somewhat rusty in that regard. But description of your steps leave some ambiguity what you have done. You stated that: 'Downloaded Python 3.8.1.' but there is nothing about installing it. Did you install? If you installed it, is it on the path? I think that easiest way is to follow recommendation from error messsage: 'run without arguments to install from the Microsoft Store'. So if you enter just 'python' to command interpreter then it should install it from Microsoft Store and do all necessary setup automagically.

You asked "If you installed it, is it on the path?" - I dont understand what you are asking.

Yes, it was installed in the Users folders (which had a long path) but Ive uninstalled & reinstalled it into C:/Programs/Python38-32.

Then I saved the .py file into C:/Programs/Python38-32/TextEditor.py

All of that has made no difference if I paste python /C:/Programs/Python38-32/TextEditor.py & hit enter.

Is there some other place where I should store the .py files?

I must say that Im reaching the end of my patience with Python. I keep reading "Python is easy to learn" but Im finding it the most complicated program that I have ever experienced in my 25+ years of dealing with computers, together with the fact that Im an experienced PHP developer where if I sat a test in CodeIgniter I believe I would gain a 60%-80% marking..