1、如果出现myconfig.h找不到：
cp /usr/local/include/mysql/mysql.h /usr/local/include/mysql/my_config.h
2、如果ld报错：ld: library not found for -lssl，直接安装一个老版本：
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip --no-cache install mysql-python==1.2.5