modify bug

trans2es/commons/words_utils.py

@@ -154,7 +154,7 @@ class QueryWordAttr(object):
     def get_query_results_num(cls,name):
         try:
             redis_data = redis_client.hget(cls.tips_num_redis_key_prefix, name)
-            redis_val_dict = json.loads(str(redis_data)) if redis_data else {}
+            redis_val_dict = json.loads(redis_data) if redis_data else {}
             results_num = redis_val_dict['t'] if 't' in redis_val_dict else 0
 
             return results_num