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BUG: Fix missing check for PyErr_Occurred() in _pyarray_correlate.#28898
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When running the scipy 1.15 test suite test signal/tests/test_signaltools.py::test_lfilter_bad_object, with Python built in debug mode, we see the following error: ``` Fatal Python error: _Py_CheckSlotResult: Slot * of type float succeeded with an exception set ``` `None` ends up as the first argument to `dot`, and this triggers an error from PyFloat_Multiply. Once an error has occurred, we must avoid calling multiply again, since it asserts that PyErr_Occurred() is false if the output is a non-error, which will fail if an error was set at entry.
seberg
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I suppose we used to get away a bit better with just continuing on error. Thanks, looks good to me, mid-term, the dot function should just return an error.
I think it would actually be OK to add a get_dotfunc function to the DType, and just stop using this implementation (maybe set the slot to NULL, or just keep it around a bit longer).
Would be nice to add a short test, although not sure if it is tedious to cover all paths here.
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…umpy#28898) When running the scipy 1.15 test suite test signal/tests/test_signaltools.py::test_lfilter_bad_object, with Python built in debug mode, we see the following error: ``` Fatal Python error: _Py_CheckSlotResult: Slot * of type float succeeded with an exception set ``` `None` ends up as the first argument to `dot`, and this triggers an error from PyFloat_Multiply. Once an error has occurred, we must avoid calling multiply again, since it asserts that PyErr_Occurred() is false if the output is a non-error, which will fail if an error was set at entry.
MaanasArora
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May 8, 2025
…umpy#28898) When running the scipy 1.15 test suite test signal/tests/test_signaltools.py::test_lfilter_bad_object, with Python built in debug mode, we see the following error: ``` Fatal Python error: _Py_CheckSlotResult: Slot * of type float succeeded with an exception set ``` `None` ends up as the first argument to `dot`, and this triggers an error from PyFloat_Multiply. Once an error has occurred, we must avoid calling multiply again, since it asserts that PyErr_Occurred() is false if the output is a non-error, which will fail if an error was set at entry.
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When running the scipy 1.15 test suite test
signal/tests/test_signaltools.py::test_lfilter_bad_object, with Python built in debug mode, we see the following error:
Noneends up as the first argument todot, and this triggers an error from PyFloat_Multiply. Once an error has occurred, we must avoid calling multiply again, since it asserts that PyErr_Occurred() is false if the output is a non-error, which will fail if an error was set at entry.