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Yoon Choi1,649 Points
Why don't you have an explanation for dunder name and dunder main?
Can we have a discussion on what name and main is?
Chris FreemanTreehouse Moderator 67,989 Points
This is a common python idiom to detect if a module is imported or being executed directly.
When a python module is imported into another module, its
__name__ attribute is set to be the same as the module name. When a python module is executed, the top level module attribute
__name__ is changed to be "
__main__". This way a module can tell the difference between if it is being imported or executed.
The python idiom
if __name__ == "__main__": main()
says, "if my
__name__ attribute has been changed to the string "
__main__", then execute the function
main(). The "
pass" would be replaced with the code to be executed.
Post back if you have more questions. Good luck!!