mac系统安装mysqlclient时，会报错OSError: mysql_config not found
 

解决办法

在项目路径下输入以下内容

PATH="$PATH":/usr/local/mysql/bin/
mysql_config

最后输入pip3 install mysqlclient即可成功安装

Successfully built mysqlclient
Installing collected packages: mysqlclient
Successfully installed mysqlclient-2.0.3