(pymysql.err.OperationalError: (2003, “Can‘t connect to MySQL server on(timed out)“)
原因:开启了防火墙 解决方法:关闭防火墙systemctl stop firewalld

(pymysql.err.OperationalError: (2003, “Can‘t connect to MySQL server on(timed out)“)
原因:开启了防火墙 解决方法:关闭防火墙systemctl stop firewalld