Accessing PyArray_GETITEM and PyArray_SETITEM

[m-chaturvedi]

Issue description

In order to pass PR #1152 on CI, I need to access PyArray_GETITEM and PyArray_SETITEM. These functions are not a part of the limited Python API Pybind11 seems to give access to. I was wondering how I could go about using them?

Initially, Jason suggested reimplementing the functions like they are in ndarraytypes.h, but then realized that the object types like PyArray_ArrFuncs is something we can't have access to. Is there a way around this? I guess, creating proxies doesn't make sense as well since the types are not exposed in Numpy's API, correct?

As per Jason's suggestion, I've asked the question on numpy-discussion as well, about why aren't these functions exposed like the rest of them in numpy_api.py.

Any help would be appreciated! Thanks!

[m-chaturvedi]

For now I called the Python methods item and itemset and cast the object back to C++ object.

[m-chaturvedi]

The question on numpy-discussion.

[jagerman]

Any thoughts on the suggestions in the numpy-discussion thread?

[m-chaturvedi]

I could get PySequence_(Get / Set)Item to work with 1D matrices, but what would be a way to make it work for 2D arrays, like for here?
(On gitter)