> I agree with Stefan and Yury. As for the tests, Yury seemed to have those in his patches -- I'll take a look and see if they're directly applicable.

Good idea, the tests are in a fine shape.

> For Python 3.5 and earlier, there is a workaround to awaiting for concurrent Futures, but it requires the use of the undocumented wrap_future() function. It is the fact that it's undocumented that bothers me.

I didn't even know about it :(  Please create an issue.