I'm giving a talk on Python Concurrency tomorrow at Py Web SF. I gave the same talk at BayPiggies two years ago, and I wrote an article on it for Dr. Dobb's Journal. However, I've updated the talk to cover new topics such as Tornado Web, gevent, and nginx.
In his keynote at PyCon, Eben Upton, the Executive Director of the Rasberry Pi Foundation, mentioned that not only has Minecraft been ported to the Rasberry Pi, but you can even control it with Python . Since four of my kids are avid Minecraft fans, I figured this might be a good time to teach them to program using Python. So I started yesterday with the goal of programming something cool for Minecraft and then showing it off at the San Francisco Python Meetup in the evening. The first problem that I faced was that I didn't have a Rasberry Pi. You can't hack Minecraft by just installing the Minecraft client. Speaking of which, I didn't have the Minecraft client installed either ;) My kids always play it on their Nexus 7s. I found an open source Minecraft server called Bukkit that "provides the means to extend the popular Minecraft multiplayer server." Then I found a plugin called RaspberryJuice that implements a subset of the Minecraft Pi modding API for B
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Last night I managed to accomplish what I set out to do: I strapped gevent onto the side of my tornado project and replaced the underlying db drivers with pg8000 (which is 100% python code) and upgraded sqlalchemy to the latest version to support it. I now have a fully feature web stack on top of gevent :) It ran some unit tests and it seems to be solid, but I still need to confirm that I'm getting the speed/concurrency from gevent and there aren't any blocking calls.
Python: Asynchronous Networking APIs and MySQL:
http://jjinux.blogspot.com/2009/12/python-asynchronous-networking-apis-and.html