Function Name Not Defined

I have a pice of code which looks like this if __name__ == '__main__': main() def main(): print('hello') However, when I try to run this code I get the error NameError

Solution 1:

You should define main before call it

def main():
    print("hello")

if __name__ == "__main__":
    main()

Solution 2:

Have I not defined the name in the first line of the function "def main()"?

Yes, but Python hasn't executed that definition yet. Put the function definition before the call.