what is if name main in python

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where is the code used
Oct 20, 2020 in Python by Joy
• 120 points
77 views

1 answer to this question.

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Hello @Joy,

'__main__' is the name of the scope in which top-level code executes. A module’s __name__ is set equal to '__main__' when read from standard input, a script, or from an interactive prompt.

A module can discover whether or not it is running in the main scope by checking its own __name__, which allows a common idiom for conditionally executing code in a module when it is run as a script or with python -m but not when it is imported:

if __name__ == "__main__":
    # execute only if run as a script
    main()

For a package, the same effect can be achieved by including a __main__.py module, the contents of which will be executed when the module is run with -m.

Hope it helps!!
Thank you!!

answered Oct 20, 2020 by Niroj
• 82,720 points

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