[Numpy-discussion] PyArray_FromAny() steals a reference to PyArray_Descr* dtype

Travis Oliphant travis@continuum...
Wed Feb 15 17:31:53 CST 2012


Yes, the PyArray_FromAny steals a reference to the dtype object.   This is done so you can build one on the fly doing something like  PyArray_DescrFromType(NPY_DOUBLE)  inline with the PyArray_FromAny call. 

-Travis



On Feb 15, 2012, at 4:23 PM, Larsen, Brian A wrote:

> Hello all, 
> 
> the docs are unclear as to the reference counting on the inputs to the numpy C function PyArray_FromAny().
> 
> multiarraymodule.c in the PyArray_InnerProduct() code seems to imply that a reference to dtype is stolen in the PyArray_FromAny process.  Meaning that I don't need/can't have a Py_DECREF().
> 
> Can anyone confirm this?
> 
> Thanks much, 
> 
> Brian
> 
> 
> 
> 
> 
> 
> 
> -- 
> 
> Brian A. Larsen
> ISR-1 Space Science and Applications
> Los Alamos National Laboratory
> PO Box 1663, MS-D466
> Los Alamos, NM 87545
> USA
> 
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> 
> Phone: 505-665-7691
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