下载相应版本的cx_Oracle
安装cx_Oracle-5.1.2-11g-py24-1.x86_64.rpm，其他版本类似，
rpm -ivh cx_Oracle-5.1.2-11g-py24-1.x86_64.rpm
安装简单，但需要配置下面的环境变量和软连接
在/etc/profile,添加
export LD_LIBRARY_PATH=/usr/lib/oracle/12.1/client64/lib/
然后创建软连接
ln -s /usr/lib/oracle/12.1/client64/lib/libclntshcore.so.12.1 /lib64/libclntshcore.so.12.1
ln -s /usr/lib/oracle/12.1/client64/lib/libclntsh.so.12.1 /lib64/libclntsh.so.12.1
ln -s /usr/lib/oracle/12.1/client64/lib/libclntsh.so.11.1 /lib64/libclntsh.so.11.1
ln -s /usr/lib/oracle/12.1/client64/lib/libipc1.so /lib64/libipc1.so
ln -s /usr/lib/oracle/12.1/client64/lib/libmql1.so /lib64/libmql1.so
ln -s /usr/lib/oracle/12.1/client64/lib/libnnz12.so /lib64/libnnz12.so
ln -s /usr/lib/oracle/12.1/client64/lib/libocci.so.12.1 /lib64/libocci.so.12.1
ln -s /usr/lib/oracle/12.1/client64/lib/libociei.so /lib64/libociei.so
ln -s /usr/lib/oracle/12.1/client64/lib/libocijdbc12.so /lib64/libocijdbc12.so
ln -s /usr/lib/oracle/12.1/client64/lib/libons.so /lib64/libons.so
ln -s /usr/lib/oracle/12.1/client64/lib/liboramysql12.so /lib64/liboramysql12.so
ln -s /usr/lib/oracle/12.1/client64/lib/ojdbc6.jar /lib64/ojdbc6.jar
ln -s /usr/lib/oracle/12.1/client64/lib/ojdbc7.jar /lib64/ojdbc7.jar
ln -s /usr/lib/oracle/12.1/client64/lib/xstreams.jar /lib64/xstreams.jar
