Example of a repeatable command decorate, for Maya (maya.cmds)

repeat.py

"""
Original example reformatted from:
http://blog.3dkris.com/2011/08/python-in-maya-how-to-make-commands.html

python_inside_maya discussion:
https://groups.google.com/d/topic/python_inside_maya/xfuCYBO6aLg/discussion
"""

import maya.cmds as cmds

_repeat_command_str = 'python("%s._repeat_command()")' % __name__

_repeat_function = None
_args = None
_kwargs = None


def _repeat_command():
    if _repeat_function is not None:
        _repeat_function(*_args, **_kwargs)


def repeatable(function):
    def wrapper(*args, **kwargs):
        global _repeat_function
        global _args
        global _kwargs

        _repeat_function = function
        _args = args
        _kwargs = kwargs

        ret = function(*args, **kwargs)

        try:
            cmds.repeatLast(ac=_repeat_command_str, acl=function.__name__)
        except RuntimeError:
            pass 

        return ret
    return wrapper


@repeatable
def example():
    print "example()"
    

I keep getting this error when I run the script:

Error: line 1: name 'main' is not defined
Traceback (most recent call last):
File "", line 1, in
NameError: name 'main' is not defined

main has the double underscores and quotation marks on either side. github seems to be using that syntax to bold it :/

Any thoughts on what the problem could be?