if __name__ == '__main__' in python means code example
Example 1: python if __main__
if __name__ == "__main__":
function_that_starts_the_module_to_run_on_its_own()
test_function_included_in_module()
Example 2: explained if name main python
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")
Example 3: explained if name main python
python foo.py