_PyObject_SetAttirbuteErrorContext

https://github.com/python/cpython/commit/11a2c6ce516b24b2435cb627742a6c4df92d411c: change value to exc

// Augment the exception with the name and object
if (PyObject_SetAttr(exc, &_Py_ID(name), name) ||
    PyObject_SetAttr(exc, &_Py_ID(obj), v)) {
    return 1;
}