Making a Python script executable

Question

Suppose I have a Python script, that I want to run by executing outside of the command line, just by double clicking it in the file explorer. When I double click a .py

Answer 1

Im pretty sure the proper way to do this would be something like

#somefile.py

def some_definition_you_want_to_run():
    print("This will print, when double clicking somefile.py")

#and then at the bottom of your .py do this
if __name__ == "__main__":
     some_definition_you_want_to_run()
     #next line is optional if you dont "believe" it actually ran 
     #input("Press enter to continue")

this makes it so anything that is under the if statement happens when opening it from outside (not when you import it, because "name" doesnt == "main" at that time)

To run it, simply double click it. and BOOM it runs.

I dont have enough linux familiarity to confirm this is how it works on linux, but it definitely works on windows. Anyone else confirm this?