[Numpy-discussion] PyArray_FROM_OF from Cython
David Warde-Farley
dwf at cs.toronto.edu
Thu Oct 8 20:32:14 EDT 2009
On 8-Oct-09, at 6:47 PM, Robert Kern wrote:
> On Thu, Oct 8, 2009 at 17:28, David Warde-Farley
> <dwf at cs.toronto.edu> wrote:
>> I'm trying to use PyArray_FROM_OF from Cython and the generated C
>> code
>> keeps crashing. Dag said on the Cython list that he wasn't sure what
>> was going on, so maybe someone here will have an idea.
>
> You must call import_array() at the top level before you can use any
> numpy C API functions.
>
> http://wiki.cython.org/tutorials/numpy#UsingtheNumpyCAPI
Thanks. One more thing: calling Py_DECREF on arrays that I have
acquired from PyArray_FROM_OF seems to cause crashes, am I correct in
assuming that Cython is somehow tracking all the PyObjects in the
scope (even ones acquired via the NumPy C API) and DECREF'ing it for me?
David
More information about the NumPy-Discussion
mailing list