Swarm is a framework allowing the creation of web applications which can scale transparently through a novel portable continuation-based approach. Swarm embodies the maxim "move the computation, not the data".
Python lists have a built-in sort() method that modifies the list in-place and a sorted() built-in function that builds a new sorted list from an iterable.
With the silly bugs from the I/O loop out of the way, the Diesel team can write tests for the more interesting pieces, and fix the bugs which aren't entirely silly :-).