WARNING in log: (OperationalError('(pymysql.err.OperationalError) (1130, "x.x.x.x' is not allowed to connect to this MySQL server")',),)

原因：不容许本地机器连远程mysql服务。

使用下列步骤解决即可：

1，登录mysql

mysql -u root -p

2，切换到mysql库

mysql>use mysql;

3，执行如下命令

mysql>select 'host' from user where user='root';

mysql>update user set host = '%' where user ='root';

mysql>flush privileges;