Syntactic sugar to replace '__name__' idiom with function call

hello_world_new.py

import main

if main.executed():
    print 'Hello World'

hello_world_old.py

if __name__ == '__main__':
    print 'Hello World'

main.py

"Convenience function for programs 'main'."
import inspect

def executed(_level=1):
    """Return True if called in a module that is executed.

    Inspects the '__name__' in the stack frame of the caller, comparing it
    to '__main__'. Thus allowing the Python idiom:
    
    >>> if __name__ == '__main__':
    ...     pass

    To be replace with:

    >>> if executed():
    ...    pass
    """
    stack = inspect.stack()
    if len(stack) < _level:
        return False
    frame = stack[_level][0]
    if not inspect.isframe(frame):
        return False
    return frame.f_globals['__name__'] == '__main__'