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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def main(args=None, stdin=sys.stdin, stdout=sys.stdout, print_exception=print_exception):
 """ Run either the mapper, combiner, or reducer from the class instance in the file "job-instance.pickle". Arguments: kind -- is either map, combiner, or reduce """

    try:
        # Set up logging.
        logging.basicConfig(level=logging.WARN)

        kind = args is not None and args[1] or sys.argv[1]
        Runner().run(kind, stdin=stdin, stdout=stdout)
    except Exception as exc:
        # Dump encoded data that we will try to fetch using mechanize
        print_exception(exc)
        raise