The problem isn’t specifically with _optinfo. _optinfo losing information is just a symptom of the fact that __array_prepare__, __array_wrap__, and __array_finalize__ do not appear to be working as documented. So far as I can tell, there is no way to access attributes of subclasses when using mathematical operators so it is impossible to maintain subclasses that contain additional attributes.
On 1/26/16, 10:45 AM, "NumPy-Discussion on behalf of Sebastian Berg" <numpy-discussion-boun...@scipy.org on behalf of sebast...@sipsolutions.net> wrote: >was changed to something like: > > masked_result._update_from(result) > >My guess is almost that this fixed some other bug (but you should >probably check git blame to see why it was put in). It might be that >_optinfo should be handled more specifically. It seems like a very >weird feature to me though when the info is always copied from the left >operand... _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion
