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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2022-11-12 02:16:18 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-12 02:16:18 (GMT) |
| commit | 8d27e6294b73fa2b5c6ecbeee072bb05c30d2685 (patch) | |
| tree | 1dbbfd6aa36f71394b88f92bd31d8c2dc8c0b919 | |
| parent | ad5159b7de68bc7d2bc0e64dbb9fcfca6545f5d6 (diff) | |
| download | cpython-8d27e6294b73fa2b5c6ecbeee072bb05c30d2685.zip cpython-8d27e6294b73fa2b5c6ecbeee072bb05c30d2685.tar.gz cpython-8d27e6294b73fa2b5c6ecbeee072bb05c30d2685.tar.bz2 | |
gh-80448: argparse: Fix IndexError on store_true action (GH-15656)
(cherry picked from commit e02cc6d42aee1f0a9ee629f76576eee478224d9d)
Co-authored-by: Hai Shi <shihai1992@gmail.com>
Co-authored-by: Rémi Lapeyre <remi.lapeyre@henki.fr>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
| -rw-r--r-- | Lib/argparse.py | 6 | ||||
| -rw-r--r-- | Lib/test/test_argparse.py | 2 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2019-09-03-15-45-19.bpo-36267.z42Ex7.rst | 1 |
3 files changed, 7 insertions, 2 deletions
diff --git a/Lib/argparse.py b/Lib/argparse.py index 9be1848..fb042a8 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -1962,7 +1962,11 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer): # arguments, try to parse more single-dash options out # of the tail of the option string chars = self.prefix_chars - if arg_count == 0 and option_string[1] not in chars: + if ( + arg_count == 0 + and option_string[1] not in chars + and explicit_arg != '' + ): action_tuples.append((action, [], option_string)) char = option_string[0] option_string = char + explicit_arg[0] diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index 0b237ab..4d43e33 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -295,7 +295,7 @@ class TestOptionalsSingleDashCombined(ParserTestCase): Sig('-z'), ] failures = ['a', '--foo', '-xa', '-x --foo', '-x -z', '-z -x', - '-yx', '-yz a', '-yyyx', '-yyyza', '-xyza'] + '-yx', '-yz a', '-yyyx', '-yyyza', '-xyza', '-x='] successes = [ ('', NS(x=False, yyy=None, z=None)), ('-x', NS(x=True, yyy=None, z=None)), diff --git a/Misc/NEWS.d/next/Library/2019-09-03-15-45-19.bpo-36267.z42Ex7.rst b/Misc/NEWS.d/next/Library/2019-09-03-15-45-19.bpo-36267.z42Ex7.rst new file mode 100644 index 0000000..7c9b592 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2019-09-03-15-45-19.bpo-36267.z42Ex7.rst @@ -0,0 +1 @@ +Fix IndexError in :class:`argparse.ArgumentParser` when a ``store_true`` action is given an explicit argument. |