Django - installing mysqlclient error: mysqlclient 1.4.0 or newer is required； you have 0.9.3

报错：Django - installing mysqlclient error: mysqlclient 1.4.0 or newer is required; you have 0.9.3

版本原因，执行：

pip3 uninstall mysqlclient
pip3 uninstall pymysql
pip3 install mysqlclient
pip3 install pymysql