human
I wrote the below code

    it = iter(args)
    @defer.inlineCallbacks
    def _concurrently_execute_inner():
        try:
            while True:
                (yield func(it.next()))
        except StopIteration:
            pass
    return preserve_context_over_deferred(defer.gatherResults([preserve_fn(_concurrently_execute_inner)() for _ in xrange(limit)], consumeErrors=True)).addErrback(unwrapFirstError)

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def concurrently_execute(func, args, limit):