is name == main code example

Example 1: if __name__ == '__main__': main()

print("before import")
def functionA():
    print("Function A")
def functionB():
    print(("Function B"))
print("before __name__")
if __name__ == '__main__':
    functionA()
    functionB()
print("after __name__")
#===Output===
#before import
#before __name__ guard
#Function A
#Function B
#after __name__ guard

Example 2: python if name == main example

# It's as if the interpreter inserts this at the top
# of your module when run as the main program.
__name__ = "__main__"

Example 3: explained if name main python

python foo.py

Example 4: what is __name__ == "__main__":

Every Python module has it's __name__ defined and if this is '__main__', it implies that the module is being run standalone by the user and we can do corresponding appropriate actions. If you import this script as a module in another script, the __name__ is set to the name of the script/module.

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