If you plan on writing any python applications/scripts for performing any basic SQL query’s against an oracle database you will need to have the cx_oracle library files installed to your machine (or server) here are some quick instructions on how to install them. Please be aware i have only tested these instructions under Ubuntu 10.10 (32bit) using the 11.2 oracle instant client, when I have time I will try and install this on one of the x86_64 machines i have access to.