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[3.13] gh-61181: Fix support of choices with string value in argparse (GH-124578) (GH-124755)

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Substrings of the specified string no longer considered valid values.
(cherry picked from commit f1a2417b9e)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2024-10-07 23:28:17 +02:00 • committed by GitHub
parent 11d4b54b88
commit 4a9a359f32
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4 changed files with 17 additions and 11 deletions
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14
Lib/argparse.py
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@ -2582,11 +2582,15 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
def _check_value(self, action, value):
# converted value must be one of the choices (if specified)
if action.choices is not None and value not in action.choices:
args = {'value': value,
'choices': ', '.join(map(repr, action.choices))}
msg = _('invalid choice: %(value)r (choose from %(choices)s)')
raise ArgumentError(action, msg % args)
choices = action.choices
if choices is not None:
if isinstance(choices, str):
choices = iter(choices)
if value not in choices:
args = {'value': value,
'choices': ', '.join(map(repr, action.choices))}
msg = _('invalid choice: %(value)r (choose from %(choices)s)')
raise ArgumentError(action, msg % args)
# =======================
# Help-formatting methods