Clear dummy and emptyfrozenset, so that we don't have

dangling references in case of a Py_Initialize/Py_Finalize
cycle.

diff --git a/Objects/setobject.c b/Objects/setobject.c
index e7f6e09fec1b77fa2fad294d5f36f46b75444d50..ff2e17f031d69a5e729f7faf33fcc578887d1653 100644 (file)
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -978,8 +978,8 @@ PySet_Fini(void)
                so = free_sets[num_free_sets];
                PyObject_GC_Del(so);
        }
-       Py_XDECREF(dummy);
-       Py_XDECREF(emptyfrozenset);
+       Py_CLEAR(dummy);
+       Py_CLEAR(emptyfrozenset);
 }
 
 static PyObject *