Asyncio -- delayed calculation

[Gregory Ewing]

Chris Angelico wrote:

> That's because you're not actually running anything concurrently.

Yes, I know what happens and why. My point is that for
someone who *doesn't* know, simplistic attempts to
explain what "await" means can be very misleading.

There doesn't seem to be any accurate way of summarising
it in a few words. The best we can do seems to be to
just say "it's a magic word that you have to put in
front of any call to a function that you defined as
async".

A paraphrasing of the Zen comes to mind: "If the
semantics are hard to explain, it may be a bad idea."

 > there are
> complexities to the underlying concepts that can't be hidden by any
> framework.

I don't entirely agree with that. I think it's possible
to build a conceptual model that's easier to grasp and
hides more of the underlying machinery. PEP 3152 was
my attempt at doing that. Unfortunately, we seem to
have gone down a fork in the road that leads somewhere
else and from which there's no getting back.

-- 
Greg