[Numpy-discussion] PyArray_FromAny silently converts None to a singleton nan

[Bradley M. Froehle]

>>> import numpy as np
>>> np.double(None)
nan

On Mon, Jan 28, 2013 at 3:48 PM, Geoffrey Irving <irving at naml.us> wrote:

> 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?
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