[Python-3000] Fwd: Conventions for annotation consumers (was: Re: Draft pre-PEP: function annotations)

[Collin Winter]

On 8/16/06, Paul Prescod <paul at prescod.net> wrote:
> Okay, you're the boss. The conversation did go pretty far afield but the
> main thing I wanted was just that if a user wanted to have annotations from
> framework 1 and framework 2 they could reliably express that as
>
> def foo(a: [Anno1, Anno2]):
>
> All that that requires is a statement in the spec saying: "If you're
> processing annotations and you see an annotation you don't understand, skip
> it. And if you see a list, look inside it rather than processing it in some
> proprietary fashion."

So, time for an embarrassing confession: I had a bit of a eureka
moment this morning, and I think I finally understand where you were
coming from with this idea. I honestly don't know what I thought you
were proposing, but now that I get it, my old conception seems like
rubbish. Consider the dict-based proposal withdrawn.

Apologies for my part in dragging this discussion into a triple-digit
comment count : )

Collin Winter