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"""This module is part of an exercise for

Think Python: an Introduction to Software Design

Copyright 2011 Allen B. Downey

License: GNU GPLv3 http://www.gnu.org/licenses/gpl.html

"""

import os

import sys

from subprocess import Popen

def spawn_popup(message, sender):

"""Launches a Popup in a subprocess."""

cmd = ['python', 'Popup.py', message, sender]

pid = Popen(cmd).pid

return pid

def main(script):

"""Spawns three Popups."""

# if you don't get this reference, see

# http://www.ibras.dk/montypython/episode03.htm

for innuendo in ['Nudge, nudge', 'Snap, snap.', 'Grin, grin.']:

print spawn_popup(innuendo, 'Norman')

if __name__ == '__main__':

main(*sys.argv)