CODEWITHSUNDEEP
pythonc++cpython-c-apipython-internals
DLunin
DLunin

Reputation: 1070

How to get reference count of a PyObject?

How to get reference count of a PyObject from C++?

There are functions Py_INCREF and Py_DECREF which increase/decrease it, but I haven't found any function which return object's reference count.

I need it for debugging purposes.

Upvotes: 17

Views: 6358

Answers (1)

thefourtheye
thefourtheye

Reputation: 239473

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.

Upvotes: 21

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