The Python variable __name__ is a;

Built-in global variable that contains the word '__main__' when out script is executed directly and is empty when our script has been imported into another script.

Built-in global variable that contains either the name of the script file, name of the current module, or the word __main__

Built-in variable that contains the name of the last function called.

Built-in local variable that contains the name of the current function and the word '__main__ when no not in a function.