item feature clean

test/item_feature_clean.py

@@ -13,11 +13,12 @@ def test():
     print("keys size:{}".format(str(len(keys))))
     num = 0
     for k in keys:
+        k = str(k,encoding='utf-8')
         v = conn.get(k)
         if v:
             data = json.loads(v,encoding='utf-8')
             if "itemid" in data:
-                # conn.delete(k)
+                conn.delete(k)
                 num += 1
                 print("del {}".format(k))