OK, how much time do you need?

--Guido van Rossum (sent from Android phone)

On Sep 9, 2013 8:44 AM, "Mark Shannon" <mark@hotpy.org> wrote:
I would like time to investigate this further, but at the moment I think it will either make attribute lookup poorly defined or slow.

Of the top of my head, the problem as a I see it is basically this:
Currently, type.__getattribute__() is a fixed point in the lookup of attributes.
The proposal means that a fixed point is not reached until the cls parameter of type.__getattribute__() is either object or type,
otherwise type.__getattribute__() and type.__locallookup__ must bounce back and forth.

This will slow down *every* attribute lookup for what is a fairly obscure use case.

Cheers,
Mark.

On 09/09/13 16:27, Guido van Rossum wrote:
Let's just accept this PEP. It looks like a nice addition to the metaclass machinery and I don't think we'll get much more useful feedback by waiting.


On Mon, Sep 9, 2013 at 7:30 AM, Ethan Furman <ethan@stoneleaf.us <mailto:ethan@stoneleaf.us>> wrote:

    On 07/30/2013 11:17 PM, Ronald Oussoren wrote:


        And something I forgot to ask: is anyone willing to be the BDFL-Delegate for
        PEP 447?


    *Bump*.

    It would be nice if this could make into 3.4.

    --
    ~Ethan~

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--
--Guido van Rossum (python.org/~guido <http://python.org/~guido>)


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