[Python-ideas] Delay evaluation of annotations

[אלעזר]

On Sun, Sep 25, 2016 at 10:14 PM David Mertz <mertz at gnosis.cx> wrote:

> All of those might promote changes in tools. But the tools exist to aid
> working with a language, not the other way around.
>
> I can't think of a way to know that this string is code and that string is
an actual string. And figuring out means finding context dependency.

I would not want my editor to do that much highlighting distinction, but
> assuming you do, all your comments defeat your own point. If an expression
> being within an annotation merits different evaluation semantics, it is a
> vastly smaller change to say a string being in an annotation merits
> different syntax highlighting.
>
It is a smaller change, but of a very different kind. I think
annotations *theoretically* deserve different syntax (e.g. using the arrow
notation) but keeping it an Expression keeps things simpler. Just like
type(type) is not type, *theoretically*, but merging these objects is a
very smart decision.

So yes, I think it should have (and already has) different semantics; but
its useful to have the same syntax (and related semantics). Simple
keyword-highlighting "except inside quotes" should still be very useful.

Elazar
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