rfc1437 / lazypy / source — bitbucket.org - and another project of mine (again) online. Lazypy is a small library that makes lazy evaluation and futures (thread and process based) available for Python. Very practical for simple concurrent programming. Ok, you can do everything by hand, but I prefer the more functional approach. It's actually from 2004, but I modernized it (the process-based futures to bypass the GIL) and uploaded it again.