anandpratap / pyhd Goto Github PK

Hello, I believe that there is a bug. I contacted the numpy developers, but would there be any chance of seeing this fixed?

Thanks!

Andrea

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Sebastian Berg [email protected] via python.org
to scipy-dev

On Sat, 2021-02-13 at 16:24 -0600, Andrea Cortis wrote:

I did try to port PyHD to python3 with 2to3
There are 38 warnings upon compiling (macos Catalina), but then when
I try
to run I get

----> 1 from hyperdual import numpy_hyperdual

ValueError: Failed to register dtype for <class
'hyperdual.hyperdual'>:
Legacy user dtypes using NPY_ITEM_IS_POINTER or NPY_ITEM_REFCOUNT
areunsupported. It is possible to create such a dtype only if it is
a
structured dtype with names and fields hardcoded at registration
time.
Please contact the NumPy developers if this used to work but now
fails.

Sounds like a simple bug, the code fails to properly initialize the
descriptor flags, which likely just means zero'ing them out.
(NumPy was really designed with being passed a static version of the
struct, although nothing wrong with the design here – it just will
never be cleaned up).

• Sebastian