Recipe request: asyncio "spin off coroutine"

[Chris Angelico]

On Thu, Dec 15, 2016 at 6:27 AM, Marko Rauhamaa <marko at pacujo.net> wrote:
> Chris Angelico <rosuav at gmail.com>:
>
>>     asyncio.spin_off(parallel()) # ???
>>
>> [...]
>>
>> What code should go on the "???" line to accomplish this?
>
> asyncio.ensure_future(parallel())

Hmm. I tried that but it didn't work in the full program (it hung the
calling coroutine until completion). But it does work in the toy
example I posted here. Weird. Must be something else that's wrong,
then. I'll keep poking around, thanks.

ChrisA