[Python-ideas] The async API of the future: Twisted and Deferreds

[Itamar Turner-Trauring]

On Sat, Oct 13, 2012 at 8:17 PM, Greg Ewing <greg.ewing at canterbury.ac.nz>wrote:


> But at least you can *see* from the presence of the 'yield'
> that suspension can occur.
>

...

He argues there that greenlet-style coroutines are bad because
> suspension can occur anywhere without warning. He likes
> generators better, because the 'yield' warns you that suspension
> might occur. Generators using 'yield from' have the same property.
>
> If his proposal involves marking the suspension points somehow, then
> syntactically it will probably be very similar to yield-from.
>

Explicit suspension is certainly better than hidden suspension, yes. But by
extension, no suspension at all is best.
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