在 Flask 中挑选字典以存储在 Redis 缓存中

Question

我正在尝试将 Flask 线程中的所有用户变量存储在 Redis 缓存中。我在

pickle.dumps

函数中遇到异常：

        r = redis.Redis(host='localhost', port=6379, db=0)

        locals_dict = {} 
        locals_list = locals().copy()

        for local in locals_list:
            locals_dict[local] = eval(local)

        serialized_object  = pickle.dumps(locals_dict) # <-- fails here
        r.set('local_vars', serialized_object)



  File "/code/app2/python/run_python.py", line 111, in run_exec
      serialized_object  = pickle.dumps(locals_dict)
  TypeError: cannot pickle '_thread.lock' object

这是什么错误以及如何将变量字典保存在 Redis 缓存中？