diff options
| -rw-r--r-- | Lib/argparse.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_argparse.py | 14 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2024-10-10-19-57-35.gh-issue-125254.RtZxXS.rst | 1 |
3 files changed, 14 insertions, 3 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index 64dbd71..cbecb3b 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -2019,7 +2019,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer): if len(option_tuples) > 1: options = ', '.join([option_string for action, option_string, sep, explicit_arg in option_tuples]) - args = {'option': arg_string, 'matches': options} + args = {'option': arg_strings[start_index], 'matches': options} msg = _('ambiguous option: %(option)s could match %(matches)s') raise ArgumentError(None, msg % args) diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index 61ddb5f..1fc97de 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -6730,9 +6730,19 @@ class TestExitOnError(TestCase): def test_ambiguous_option(self): self.parser.add_argument('--foobaz') self.parser.add_argument('--fooble', action='store_true') + self.parser.add_argument('--foogle') self.assertRaisesRegex(argparse.ArgumentError, - "ambiguous option: --foob could match --foobaz, --fooble", - self.parser.parse_args, ['--foob']) + "ambiguous option: --foob could match --foobaz, --fooble", + self.parser.parse_args, ['--foob']) + self.assertRaisesRegex(argparse.ArgumentError, + "ambiguous option: --foob=1 could match --foobaz, --fooble$", + self.parser.parse_args, ['--foob=1']) + self.assertRaisesRegex(argparse.ArgumentError, + "ambiguous option: --foob could match --foobaz, --fooble$", + self.parser.parse_args, ['--foob', '1', '--foogle', '2']) + self.assertRaisesRegex(argparse.ArgumentError, + "ambiguous option: --foob=1 could match --foobaz, --fooble$", + self.parser.parse_args, ['--foob=1', '--foogle', '2']) def test_os_error(self): self.parser.add_argument('file') diff --git a/Misc/NEWS.d/next/Library/2024-10-10-19-57-35.gh-issue-125254.RtZxXS.rst b/Misc/NEWS.d/next/Library/2024-10-10-19-57-35.gh-issue-125254.RtZxXS.rst new file mode 100644 index 0000000..abe37fe --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-10-10-19-57-35.gh-issue-125254.RtZxXS.rst @@ -0,0 +1 @@ +Fix a bug where ArgumentError includes the incorrect ambiguous option in :mod:`argparse`. |