W3cubDocs

/Python 2.7

__main__ — Top-level script environment

This module represents the (otherwise anonymous) scope in which the interpreter’s main program executes — commands read either from standard input, from a script file, or from an interactive prompt. It is this environment in which the idiomatic “conditional script” stanza causes a script to run:

if __name__ == "__main__":
    main()

© 2001–2020 Python Software Foundation
Licensed under the PSF License.
https://docs.python.org/2.7/library/__main__.html