Use python libraries- cmd to process + store output

I havea number of python libraries \What you have to do is create examples showing how to use these libraries in python.\

each of these libraires takes text as input and text as output. You have to create python commands that assign the text input to be used by such a library to a python variable, then the command to use the library and finally assign the output to a text variable.
This has to be done on a hourly basis.

Thanks,
Arvind.