PyArg_ParseTuple SegFaults in CApi

Question

I am writing a code, trying to get used to the C API of NumPy arrays.

#include 
#include \"numpy/arrayobject.h\"
#include 
#inclu         


        

Answer 1

From the docs:

O (object) [PyObject *]
Store a Python object (without any conversion) in a C object pointer. The C program thus receives the actual object that was passed. The object’s reference count is not increased. The pointer stored is not NULL.

O! (object) [typeobject, PyObject *]
Store a Python object in a C object pointer. This is similar to O, but...

You're returning a stolen reference. Increment it first.