Pia is a tool running pipelines of RESTful services. Pia aggregates a set of requests chained by their HTTP bodies, so that the output of each response feeds directly as input to next request.
Obviously, Pia is influenced by Unix philosophy. Pipeline, Do One Thing and Do It Well, Choose portability over efficiency, etc.
Pia provides you a command-line application after installing by pip install pia. Check the docs for complete installation and usage instructions.
Go to http://pythonhosted.org/pia for a prebuilt version of the current documentation.