[Python-Dev] PEP 549: Instance Properties (aka: module properties)

Ivan Levkivskyi levkivskyi at gmail.com
Thu Sep 14 16:40:38 EDT 2017


On 14 September 2017 at 22:21, Ivan Levkivskyi <levkivskyi at gmail.com> wrote:

> On 14 September 2017 at 22:07, Ethan Furman <ethan at stoneleaf.us> wrote:
>
>>
>> For comparison's sake, what would the above look like using __class__
>> assignment?  And what is the performance difference?
>>
>>
> Actually I tried but I can't implement this without module __getattr__
> so that one can just write:
>
> from typing_extensions import allow_forward_references
> allow_forward_references('Vertex', 'Edge')
>
> Maybe I am missing something, but either it is impossible in principle or
> highly non-trivial.
>
>
Actually my version does not work either on my branch :-(
But maybe this is a problem with my implementation.

--
Ivan
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