#!/usr/bin/env python
     #
     # Copyright 2007 Doug Hellmann.
     #
     """Using optparse with single-letter options.
     """
     #end_pymotw_header
     
     import optparse
     
     parser = optparse.OptionParser()
     parser.add_option('-o', action="append", dest='outputs', default=[])
     
     options, args = parser.parse_args()
     
     print options.outputs