I discovered this from C via the PyArray_FromAny function, but here it
is in Python:
>>> asarray(None,dtype=float)
array(nan)
Is this expected or documented behavior? It seems quite unintuitive
and surprising that this wouldn't throw an exception.
Is there a way to disable this behavior in PyArray_FromAny in order to
catch bugs earlier on? In the situation where I discovered this I
actually passed None to a wrapped C routine, and it complained that it
didn't have rank 2 (since the resulting nan singleton had rank 0).
It'd be much nicer to get something mentioning NoneType. I suppose I
could check for None manually as long there aren't any other weird
cases.
Geoffrey
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