解决cache_device_city_list为空列表

diaryQueueUpdate.py

@@ -250,10 +250,9 @@ if __name__ == "__main__":
         cache_video_id = total_video_id
         device_city_list = get_active_users()
         # 过滤掉5分钟内预测过的用户
-        if cache_device_city_list != []:
-            device_city_list = list(set(device_city_list)-set(cache_device_city_list))
+        device_city_list = list(set(tuple(device_city_list))-set(tuple(cache_device_city_list)))
         if device_city_list != []:
-            cache_device_city_list.append(device_city_list)
+            cache_device_city_list.extend(device_city_list)
         if datetime.now().minute % 5 == 0:
             cache_device_city_list = []
         total_number += len(device_city_list)