Python · Iterators, modules and the standard library

if name == "main"

Runs code only when the file is executed directly, not when imported.

pythonRunnable example python course

Syntax

if __name__ == "__main__":

Example

Open in the lab

def main():
    print("Running as a script")

if __name__ == "__main__":
    main()

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.