[Python-ideas] Delay evaluation of annotations

[Alexander Belopolsky]

On Thu, Sep 22, 2016 at 1:19 PM, אלעזר <elazarg at gmail.com> wrote:

> I propose delaying evaluation of annotation-expressions by either keeping
> the AST of the annotation, or turning it implicitly from EXP into "lambda:
> EXP". Inspection code that is interested in this information can access it
> be calling (or evaluating) it.
>
> It certainly isn't a backward compatible change
>

It can be made almost backward compatible by making __annotations__ a
property that calls your "lambda: EXP"s at the time when it is requested.
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