解决报错：_mysql_exceptions.OperationalError: (1251, 'Client does not support authentication protocol ...

本地环境：

python2.7.15

MySQL8.0

MySQL-python 1.2.5

执行：

>>> import MySQLdb

>>> conn = MySQLdb.connect(host="localhost",user="root",passwd="123456",db="sunck")

遇到报错：

_mysql_exceptions.OperationalError: (1251, 'Client does not support authentication protocol requested by server; consider upgrading MySQL client')

解决办法：

命令行输入：

mysql -u root -p

输入密码

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';

mysql> FLUSH PRIVILEGES;

更改密码后需用flush privileges刷新MySQL的系统权限相关表，否则会出现拒绝访问，还有一种方法，就是重新启动mysql服务器，来使新设置生效。