[New-bugs-announce] [issue38584] argparse: Specifying a whitespace-only help message to a positional arg triggers an IndexError when displaying --help

[Lucas Cimon]

New submission from Lucas Cimon <lucas.cimon at gmail.com>:

The test I am going to add to test_argparse.py:

    def test_whitespace_help(self):
        parser = self._get_parser()
        parser.add_argument(
            '--foo2', action='store_true', help=' ')
        parser.add_argument(
            'bar2', type=float, help=' ')
        parser.format_help()  # raises an IndexError

----------
components: Library (Lib)
messages: 355336
nosy: Lucas Cimon
priority: normal
severity: normal
status: open
title: argparse: Specifying a whitespace-only help message to a positional arg triggers an IndexError when displaying --help
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38584>
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