Handy decorator for profiling. Stolen from https://speakerdeck.com/rwarren/a-brief-intro-to-profiling-in-python

profile_this.py

def profile_this(fn):
    import cProfile
    def profiled_fn(*args, **kwargs):
        fpath = fn.__name__ + ".profile"
        prof = cProfile.Profile()
        ret = prof.runcall(fn, *args, **kwargs)
        prof.dump_stats(fpath)
        return ret
    return profiled_fn