I want to use the image with cx_Oracle , but it's always wrong. Any suggestion/help is apreciated; thank you for your time.

```
(cx_Oracle.DatabaseError) DPI-1047: 64-bit Oracle Client library cannot be loaded: "libclntsh.so: cannot open shared object file: No such file or directory". See https://oracle.github.io/odpi/doc/installation.html#linux for help (Background on this error at: http://sqlalche.me/e/4xp6)

python:2.7.5 
 cx-Oracle:7.3.0
cent0s7, 64