<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def create_parser(self, prog_name, subcommand):
 """ Create an OptionParser prog_name - Name of a command subcommand - Name of a subcommand """

        parser = OptionParser(prog=prog_name,
                              usage=self.usage(subcommand),
                              option_list=self.option_list)
        return parser