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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(argv=None):
 """Entry point for the `simpl` command."""

    #
    # `simpl server`
    #
    logging.basicConfig(level=logging.INFO)
    server_func = functools.partial(server.main, argv=argv)
    server_parser = server.attach_parser(default_subparser())
    server_parser.set_defaults(_func=server_func)

    # the following code shouldn't need to change when
    # we add a new subcommand.
    args = default_parser().parse_args(argv)
    args._func()