What is __main__ ?

Question

When I execute the code I am getting __main__.
What is meant by __main__ ?

https://code.sololearn.com/c6e4AbrKaXgg/?ref=app

Answer 1

In Python, the special name __main__ is used for two important constructs: the name of the top-level environment of the program, which can be checked using the __name__ == '__main__' expression; and. the __main__.py file in Python packages.

https://docs.python.org/3/library/__main__.html#:~:text=In%20Python%2C%20the%