[issue11947] re.IGNORECASE does not match literal "_" (underscore)

[Robert Meerman]

Robert Meerman <robert.meerman at gmail.com> added the comment:

Oh, that's embarrassing. :-)

Could a type-check be used to alert the user to their mistake? I suppose that would require re.IGNORECASE (et al) to be of some new type (presumably sub-classed from Integer).

(Thanks for the quick response, and sorry to waste your time)

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