[Python-Dev] A new dictionary implementation

["Martin v. Löwis"]

Am 02.02.2012 12:30, schrieb Chris Withers:
> On 01/02/2012 17:50, Guido van Rossum wrote:
>> Another question: a common pattern is to use (immutable) class
>> variables as default values for instance variables, and only set the
>> instance variables once they need to be different. Does such a class
>> benefit from your improvement?
> 
> A less common pattern, but which still needs to work, is where a mutable
> class variable is deliberately store state across all instances of a
> class...

This is really *just* a dictionary implementation. It doesn't affect any
of the lookup procedures. If you trust that the dictionary semantics on
its own isn't changed (which I believe is the case, except for key
order), none of the dict applications will change.

Regards,
Martin