BUG: ser.str.match with mismatched case/pat/flags #63108
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rhshadrach
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Nov 15, 2025
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rhshadrach
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+1 on this approach, it seems superior to me than having case or flags take precedence over the other. Docstring could use updated.
pandas/core/strings/accessor.py
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| if case is lib.no_default: | ||
| if is_re(pat): | ||
| implicit_case = not bool(pat.flags & re.IGNORECASE) | ||
| case = True |
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Should this be:
Suggested change
| if case is lib.no_default: | |
| if is_re(pat): | |
| implicit_case = not bool(pat.flags & re.IGNORECASE) | |
| case = True | |
| if case is lib.no_default: | |
| if is_re(pat): | |
| case = not bool(pat.flags & re.IGNORECASE) |
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doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.