python redis set list报错及redis 获取list字符串，解析为list

1. Python redis set list报错
redis set list报错Invalid input of type: 'list'. Convert to a byte, string or number first. 
加上str解决，怀疑版本问题

2. Python中redis 获取list字符串，解析为list
query_list = redis_conn.get(key)
query_list = query_list.decode('utf-8')
query_list = ast.literal_eval(query_list)