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[3.12] gh-104860: Fix allow_abbrev=False for single-dash long options (GH-124340) (GH-124750)

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(cherry picked from commit 49e105f948)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This commit is contained in:
Miss Islington (bot) 2024-09-29 10:16:38 +02:00 • committed by GitHub
parent 65103adadd
commit 00fd32af21
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3 changed files with 20 additions and 1 deletions
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2
Lib/argparse.py
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@ -2361,7 +2361,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
action = self._option_string_actions[option_string]
tup = action, option_string, '', short_explicit_arg
result.append(tup)
elif option_string.startswith(option_prefix):
elif self.allow_abbrev and option_string.startswith(option_prefix):
action = self._option_string_actions[option_string]
tup = action, option_string, None, None
result.append(tup)

17
Lib/test/test_argparse.py
View file

@ -957,6 +957,23 @@ class TestOptionalsDisallowLongAbbreviationPrefixChars(ParserTestCase):
]
class TestOptionalsDisallowSingleDashLongAbbreviation(ParserTestCase):
"""Do not allow abbreviations of long options at all"""
parser_signature = Sig(allow_abbrev=False)
argument_signatures = [
Sig('-foo'),
Sig('-foodle', action='store_true'),
Sig('-foonly'),
]
failures = ['-foon 3', '-food', '-food -foo 2']
successes = [
('', NS(foo=None, foodle=False, foonly=None)),
('-foo 3', NS(foo='3', foodle=False, foonly=None)),
('-foonly 7 -foodle -foo 2', NS(foo='2', foodle=True, foonly='7')),
]
class TestDisallowLongAbbreviationAllowsShortGrouping(ParserTestCase):
"""Do not allow abbreviations of long options at all"""

2
Misc/NEWS.d/next/Library/2024-09-23-17-33-47.gh-issue-104860.O86OSc.rst Normal file
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@ -0,0 +1,2 @@
Fix disallowing abbreviation of single-dash long options in :mod:`argparse`
with ``allow_abbrev=False``.