Method _check_help

Lib/argparse.py:1822–1828

(self, action)

                action.container._remove_action(action)

    def _check_help(self, action):
        if action.help and hasattr(self, "_get_validation_formatter"):
            formatter = self._get_validation_formatter()
            try:
                formatter._expand_help(action)
            except (ValueError, TypeError, KeyError) as exc:
                raise ValueError('badly formed help string') from exc


class _ArgumentGroup(_ActionsContainer):