I&#39;m not quite sure why Deferreds + @inlineCallbacks is more complicated than Futures + coroutines. They seem, at least from a high level perspective, quite similar. You mention that you can both attach callbacks and use them in coroutines: deferreds do pretty much exactly the same thing (that is, at least there&#39;s something to translate your coroutine into a sequence of callbacks/errbacks).<br>

<br>If the arcane part of deferreds is from people writing ridiculous errback/callback chains, then I understand. Unfortunately people will write terrible code.<br><br>cheers<br>lvh<br>