cosmetics

kombu/utils/json.py

@@ -16,13 +16,10 @@ IS_PY3 = sys.version_info[0] == 3
 class JSONEncoder(json.JSONEncoder):
 
     def default(self, obj, _super=json.JSONEncoder.default):
-        try:
-            _super(self, obj)
-        except TypeError:
         try:
             reducer = obj.__json__
         except AttributeError:
-                raise
+            return _super(self, obj)
         else:
             return reducer()