BUG: Addressing #61072 #61073
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BUG: Addressing #61072 #61073
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Pedro-Santos04
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Mar 23, 2025
…nation in PyArrow strings Fixes an issue where regex patterns with alternation (|) produce different results between str dtype and string[pyarrow] dtype. When using patterns like "(as)|(as)", PyArrow implementation would incorrectly match "asdf" while Python's implementation correctly rejects it. The fix adds special handling to ensure alternation patterns are properly parenthesized when using PyArrow-backed strings.
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Thanks for the pull request, but it appears to have gone stale. If interested in continuing, please merge in the main branch, address any review comments and/or failing tests, and we can reopen. |
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Trying to address #61072 since I created the issue. I've never contributed to pandas, but I have tried to follow what is in the guide.