def set_defaults(self, **kwargs):
        self._defaults.update(kwargs)

        # if these defaults match any existing arguments, replace
        # the previous default on the object with the new one
        for action in self._actions:
            if action.dest in kwargs:
                action.default = kwargs[action.dest]
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/argparse/argparse.py/_ActionsContainer.set_defaults/original