There's several ways of doing concurrency in Python. Other than the threading module, have you tried FibraNet? It's designed with simple games in mind. You can download it at http://cheeseshop.python.org/pypi/FibraNet. Specifically the nanothreads module from FibraNet uses generators to simulate light-weight cooperative threads.
Generator-based approaches are fast and *deterministic*, unlike true threads where you have to account for race conditions, etc. You can pause, resume, kill, or end a "thread". In Python 2.5 (soon to be released), generators will be consumers rather than just producers, so you can pass things into generators (without needing global variables as a workaround) rather than only being able to spit out data on-the-fly. They'll also have a more graceful way to handle exceptions. For a good overview of the concept, especially if you want to implement this yourself instead of using Fibranet (although re-use is often the better choice), take a look at this link from the Charming Python column: http://gnosis.cx/publish/programming/charming_python_b7.html. If this all seems too exotic, then you can also just go with the traditional threading approach with the threading module. Normally you'll want to use the "threading" module rather than the lower-level "thread" module. But be warned, threads are a big can of worms. I hope you find this useful. Yannick wrote: > Hi, > > I would like to program a small game in Python, kind of like robocode > (http://robocode.sourceforge.net/). > Problem is that I would have to share the CPU between all the robots, > and thus allocate a time period to each robot. However I couldn't find > any way to start a thread (robot), and interrupt it after a given time > period. > Any suggestions on how to proceed? > Is Python just not adapted to this kind of things? > > Thanks, > Yannick -- http://mail.python.org/mailman/listinfo/python-list
