(self, action, value)
| 2666 | return result |
| 2667 | |
| 2668 | def _check_value(self, action, value): |
| 2669 | # converted value must be one of the choices (if specified) |
| 2670 | choices = action.choices |
| 2671 | if choices is None: |
| 2672 | return |
| 2673 | |
| 2674 | if isinstance(choices, str): |
| 2675 | choices = iter(choices) |
| 2676 | |
| 2677 | if value not in choices: |
| 2678 | args = {'value': str(value), |
| 2679 | 'choices': ', '.join(map(str, action.choices))} |
| 2680 | msg = _('invalid choice: %(value)r (choose from %(choices)s)') |
| 2681 | |
| 2682 | if self.suggest_on_error and isinstance(value, str): |
| 2683 | if all(isinstance(choice, str) for choice in action.choices): |
| 2684 | import difflib |
| 2685 | suggestions = difflib.get_close_matches(value, action.choices, 1) |
| 2686 | if suggestions: |
| 2687 | args['closest'] = suggestions[0] |
| 2688 | msg = _('invalid choice: %(value)r, maybe you meant %(closest)r? ' |
| 2689 | '(choose from %(choices)s)') |
| 2690 | |
| 2691 | raise ArgumentError(action, msg % args) |
| 2692 | |
| 2693 | # ======================= |
| 2694 | # Help-formatting methods |
no test coverage detected