How to check if PyObject* points to the type numpy.uint8

Question

How do I use the Python C-API to check if a PyObject* points to the type numpy.uint8 etc?

(Note that I want to check if the PyObject* points to the type numpy.uint8, not if it points to an instance of the type numpy.uint8.)

freshstrangemusic · Accepted Answer · 2011-07-27 23:06:43Z

1

You can use PyType_IsSubtype(child, parent) to see if the child type inherits the parent, but it operates on PyTypeObject*, not PyObject*.

edited Jul 27, 2011 at 23:06

answered Jul 27, 2011 at 23:01

freshstrangemusic

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2 Comments

Johan Råde Over a year ago

And how do I get the PyTypeObject* for numpy.uint8?

freshstrangemusic Over a year ago

If you have an instance of numpy.uint8, you can access it via object->ob_type, but other than that, I don't know. I imagine you could get the numpy module it from the globals dict (via PyEval_GetGlobals()) and then access numpy.uint8 from there, but I'm not sure on the exact method.

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