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ENH: Make sure the _xerbla error callback is being used by blas functions #12472
Description
In working on mamtul, it became apparent that the numpy/core/src/common/python_xerbla.c error handler, which should be registered when linking with OpenBLAS, is not being called. This should be used as it turns the default "print to stderr" to "raise a nice Python exception" when input to one of the blas routines is malformed.
Activity
rgommers commentedon Jul 23, 2023
Hmm, this is a bit of a mess. We have two copies of
python_xerbla.c; only the one innumpy/linalg/lapack_lite/is tested, and that test is silently skipped when it's failing: