[Python-ideas] Delay evaluation of annotations

[Alexander Belopolsky]

On Thu, Sep 22, 2016 at 4:43 PM, Alexander Belopolsky <
alexander.belopolsky at gmail.com> wrote:

>
> On Thu, Sep 22, 2016 at 4:37 PM, Alexander Belopolsky <
> alexander.belopolsky at gmail.com> wrote:
>
>> On the second thought, why can't the parser simply replace A with 'A' in
>> annotations that appear in the body of class A?  This will only break
>> somewhat pathological code that defines A before it is (re)defined by the
>> class statement.
>
>
> Then the default metaclass (type) can go over the annotations and replace
> 'A' with A that it just computed.
>

On the third thought, this entire feature can be implemented in the
metaclass by injecting A = 'A' in the dict in __prepare__.
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