> So where does the Py_DECREF() for the above Py_INCREF() live? I > expected to find this code snippet somewhere, but couldn't: > > if (type->tp_flags & Py_TPFLAGS_HEAPTYPE) > Py_DECREF(type); For a regular heaptype, it's in subtype_dealloc: /* Can't reference self beyond this point */ Py_DECREF(type); HTH, Martin