This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.
此MongoDB部署不支持可重试写入。请将retryWrites=false添加到连接字符串中。
如下设置即可
client = MongoClient("192.168.52.131:27017", retryWrites="false")
原文：https://www.cnblogs.com/rhgaiymm/p/12036825.html