Hi all, I would like to deprecate three C-API functions (more may come later) in https://github.com/numpy/numpy/pull/15427
The functions are: * PyArray_GetArrayParamsFromObject * PyUfunc_GenericCall * PyUFunc_SetUsesArraysAsData I could not find downstream usage for any of these and they seem useful only on first glance to me. The first one is too complex (regarding scalars), simply converting to an array first should be just as well. The second one is almost identical to `PyObject_Call`. And the third one is not even documented and while the idea is sound, I am not sure that there are any cases where it is useful [0] My idea is to add the deprecation warning now, and if nobody notices it remove them as soon as 1.19 is released. - Sebastian [0] It seems useful for user datatypes/loop, but using it for those does not seem possible (or at least straight forward), since they are usually stored in a way not accessible through this function.
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