Concurrence: a Python framework to create massively concurrent network applications

The concept is a neat addition toa growing list of python non-traditional concurrency options: Stackless, py.greenlet/eventlet, kamaelia, fibra, and twisted's defer.inlineCallbacks offer similar featuers.<p>Of that list, Concurrence is most like fibra and kamaelia, which also use python 2.5+ generators to achieve microthread concurrency.

Correct me if I'm wrong, but it seems that this solution, like others, is still constrained by Python's Global Interpreter Lock, ensuring that only one thread per process can be executing Python code at any time.<p>If you want true concurrency of Python code (like if you wanted to run it on multiple cores at once), you'd have to use something like pyprocessing, which spawns off new processes instead of threads.

"It takes a Lightweight-tasks-with-message-passing approach to concurrency."<p>As someone who really likes Erlang's approach to concurrency, I think it is very cool to see it starting to become available in more and more languages.