PipeController is a tool that I wrote to experiment with simulating simple, sequential, synchronous UNIX-style pipes in Python. It is the first release - v0.1. Blog post about PipeController: http://jugad2.blogspot.in/2012/08/pipecontroller-v01-released-simulating.htm... The blog post gives some information about the design of PipeController and an example of how to use it. Download PipeController: http://dancingbison.com/unix-pipes.zip I have not put any license information in the PipeController source code, but will be doing that, and it will be released under the New BSD license. - Vasudev Ram www.dancingbison.com