The return value from PyObject_ClearWeakRefs() is no longer meaningful,

so make it void.

Include/object.h

@@ -284,7 +284,7 @@ extern DL_IMPORT(int) PyCallable_Check(PyObject *);
 extern DL_IMPORT(int) PyNumber_Coerce(PyObject **, PyObject **);
 extern DL_IMPORT(int) PyNumber_CoerceEx(PyObject **, PyObject **);
 
-extern DL_IMPORT(int) (*PyObject_ClearWeakRefs)(PyObject *);
+extern DL_IMPORT(void) (*PyObject_ClearWeakRefs)(PyObject *);
 
 /* Helpers for printing recursive container types */
 extern DL_IMPORT(int) Py_ReprEnter(PyObject *);

Modules/_weakref.c

@@ -692,7 +692,7 @@ weakref_proxy(PyObject *self, PyObject *args)
  * until one resurrects the object, at which point it stops invalidating
  * weak references and returns false.
  */
-static int
+static
 cleanup_helper(PyObject *object)
 {
     PyWeakReference **list;
@@ -702,7 +702,7 @@ cleanup_helper(PyObject *object)
         || object->ob_refcnt != 0) {
         PyErr_BadInternalCall();
         /* not sure what we should return here */
-        return 1;
+        return;
     }
     list = GET_WEAKREFS_LISTPTR(object);
     while (*list != NULL) {
@@ -722,7 +722,7 @@ cleanup_helper(PyObject *object)
             Py_DECREF(callback);
         }
     }
-    return (object->ob_refcnt > 0 ? 0 : 1);
+    return;
 }
 
 

Objects/classobject.c

@@ -516,8 +516,7 @@ instance_dealloc(register PyInstanceObject *inst)
 	extern long _Py_RefTotal;
 #endif
 
-	if (!PyObject_ClearWeakRefs((PyObject *) inst))
-		return;
+	PyObject_ClearWeakRefs((PyObject *) inst);
 
 	/* Temporarily resurrect the object. */
 #ifdef Py_TRACE_REFS

Objects/object.c

@@ -1475,13 +1475,13 @@ PyObject_Free(void *p)
    call site instead of requiring a test for NULL.
 */
 
-static int
+static void
 empty_clear_weak_refs(PyObject *o)
 {
-    return 1;
+    return;
 }
 
-int (*PyObject_ClearWeakRefs)(PyObject *) = empty_clear_weak_refs;
+void (*PyObject_ClearWeakRefs)(PyObject *) = empty_clear_weak_refs;