how to execute within Entrance "if __name__ == "__main__":"

Here is a simple python file and I would like to try to execute it like main file in my .Net application. But I didn't find a way. Is there any way to do this? thx a lot
`import sys
import clr


def func1():
    print('func1')


def func2(a, b):
    print(a+b)
    print('func2')
    return a+b


if  __name__ == "__main__":
    print(func2(1,2))
    sys.exit(0)
`