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#10424: argument names are now included in the missing argument message

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Fix and initial test patch by Michele Orrù.
This commit is contained in:
R David Murray 2011-06-09 12:34:07 -04:00
parent 8dd8d582e3
commit f97c59aaba
3 changed files with 69 additions and 10 deletions
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15
Lib/argparse.py
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@ -1969,17 +1969,12 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
# if we didn't consume all the argument strings, there were extras
extras.extend(arg_strings[stop_index:])
# if we didn't use all the Positional objects, there were too few
# arg strings supplied.
if positionals:
self.error(_('too few arguments'))
# make sure all required actions were present
for action in self._actions:
if action.required:
if action not in seen_actions:
name = _get_action_name(action)
self.error(_('argument %s is required') % name)
required_actions = [_get_action_name(action) for action in self._actions
if action.required and action not in seen_actions]
if required_actions:
self.error(_('the following arguments are required: %s') %
', '.join(required_actions))
# make sure all required groups had one option present
for group in self._mutually_exclusive_groups: