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GH-124321: Fix argparse negative number parsing to capture -.5(GH-124322)

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Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
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Savannah Ostrowski 2024-09-23 11:16:55 -07:00 • committed by GitHub
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Lib/argparse.py
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@ -1360,7 +1360,7 @@ class _ActionsContainer(object):
self._defaults = {}
# determines whether an "option" looks like a negative number
self._negative_number_matcher = _re.compile(r'^-\d[\d_]*(\.\d[\d_]*)?$')
self._negative_number_matcher = _re.compile(r'^-(?:\d+(?:_\d+)*(?:\.\d+(?:_\d+)*)?|\.\d+(?:_\d+)*)$')
# whether or not there are any optionals that look like negative
# numbers -- uses a list so it can be shared and edited