if __name__ == '__main__' in python
# if __name__ == '__main__' checks if a file is imported as a module or not.
# example:
def main():
print('Hello World')
if __name__ == '__main__':
# This code won't run if this file is imported.
main()explained if name main python
# Suppose this is foo.py.
print("before import")
import math
print("before functionA")
def functionA():
print("Function A")
print("before functionB")
def functionB():
print("Function B {}".format(math.sqrt(100)))
print("before __name__ guard")
if __name__ == '__main__':
functionA()
functionB()
print("after __name__ guard")Copyright © 2021 Codeinu
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