from abc import ABCMeta, abstractmethod

import argparse
import Object

class Cmd(Object.Object): # export

    __metaclass__=ABCMeta

    @abstractmethod
    def run(self, args):
        pass

    def __init__(self, name, help):
	self.name = name
        self.help = help

    def _run(self, args):
        pass

    def add_parser(self, parsers):
	r = parsers.add_parser(self.name, help=self.help,
            formatter_class=argparse.ArgumentDefaultsHelpFormatter)
	r.set_defaults(func=self.run)
        return r