BUG: avoid segmentation fault in string_expandtabs_length_promoter
#29368
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Fixes the first item in numpy#28829. `op_dtypes[0]` may be null, so use `op_dtypes[1]` instead.
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ping @lysnikolaou |
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Fixes the first item in #28829.
op_dtypes[0]may be null, so useop_dtypes[1]instead.This is my first PR to NumPy, so please let me know if there's anything I should fix or improve.
Root Cause
string_expandtabs_length_promoter, the first item ofop_dtypescan be NULL.Rationale
ops, legacy type resolution does not handle NULL well. Therefore, I changed the logic to use the second item instead.Outcome
numpy._core.strings._expandtabs_length.reduce(numpy.zeros(200))now raises aUFuncTypeError, instead of causing a segmentation fault.