How to get reference count of a PyObject from C++?
There are functions Py_INCREF and Py_DECREF which increase/decrease it, but I
The reference count of each and every object is stored in the PyObject itself, in a variable called ob_refcnt. You can directly access that.
typedef struct _object {
_PyObject_HEAD_EXTRA
Py_ssize_t ob_refcnt; # Reference count
struct _typeobject *ob_type;
} PyObject;
Alternatively, you can use the Py_REFCNT Macro.