<p dir="ltr">OK, how much time do you need?</p>
<p dir="ltr">--Guido van Rossum (sent from Android phone)</p>
<div class="gmail_quote">On Sep 9, 2013 8:44 AM, "Mark Shannon" <<a href="mailto:mark@hotpy.org">mark@hotpy.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I would like time to investigate this further, but at the moment I think it will either make attribute lookup poorly defined or slow.<br>
<br>
Of the top of my head, the problem as a I see it is basically this:<br>
Currently, type.__getattribute__() is a fixed point in the lookup of attributes.<br>
The proposal means that a fixed point is not reached until the cls parameter of type.__getattribute__() is either object or type,<br>
otherwise type.__getattribute__() and type.__locallookup__ must bounce back and forth.<br>
<br>
This will slow down *every* attribute lookup for what is a fairly obscure use case.<br>
<br>
Cheers,<br>
Mark.<br>
<br>
On 09/09/13 16:27, Guido van Rossum wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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.<br>
<br>
<br>
On Mon, Sep 9, 2013 at 7:30 AM, Ethan Furman <<a href="mailto:ethan@stoneleaf.us" target="_blank">ethan@stoneleaf.us</a> <mailto:<a href="mailto:ethan@stoneleaf.us" target="_blank">ethan@stoneleaf.us</a>>> wrote:<br>
<br>
On 07/30/2013 11:17 PM, Ronald Oussoren wrote:<br>
<br>
<br>
And something I forgot to ask: is anyone willing to be the BDFL-Delegate for<br>
PEP 447?<br>
<br>
<br>
*Bump*.<br>
<br>
It would be nice if this could make into 3.4.<br>
<br>
--<br>
~Ethan~<br>
<br>
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