What is style if __name__ == '__main__'?

Question

I understand the purpose of this, however I was wondering what is the most pythonic way of using if __name__ == '__main__'?

I split between putting all my code in a function main()and calling it like:

if __name__ == '__main__':
    main()

Or don’t worry about it and just write all the top-level code there:

if __name__ == '__main__':
    # all top-level code...

Answer 1

If you write all code under protection __name__, you can never reuse this code. If, on the other hand, you put the code in a function main(), you can always import this function to another place and call it.

, setup.py setuptools, . , script, , script ( sys.path main()).

Answer 2

, , , main , , (. ).

Answer 3

: Python CodeAcademy.

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JavaScript

(function() {
    // Stuff here
})();