Obligatory mention of gevent[1]. It handles all the plumbing for you with monkey-patching I/O calls. No annotations necessary, you just write linear code. [1]

Obligatory mention of gevent[1]. It handles all the plumbing for you with monkey-patching I/O calls. No annotations necessary, you just write linear code. [1] http://www.gevent.org http://www.gevent.org