What's the easiest way to run a Python script on Windows/Mac/Linux? or How do I properly run a Python

For a foolproof way to run a Python script, try Thonny. It's a beginner-friendly IDE that handles all the setup for you. No command line, no PATH drama.

If you're on Windows, sometimes antivirus blocks .py files. Whitelist your script folder just in case.

And yeah, `python3` vs `python` is a thing. Windows defaults to `python`, but Mac/Linux need `python3`.