python if __name__ == '__main__' return code example
Example 1: if __name__ == '__main__'
if __name__ == "__main__":
Example 2: 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__")
Example 3: if__name__== '__main__':
if__name__== '__main__':
Example 4: What does if __name_=="_main__": do?
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")