On May 12, 2012, at 10:04 PM, Nick Coghlan wrote: >On Sat, May 12, 2012 at 12:40 PM, Eric Snow <ericsnowcurren...@gmail.com> >wrote: > If anyone has strong feelings for item-access over attribute-access, >> please elaborate. I'm just not seeing it as that important and would > >rather finish up the PEP as simply as possible. > >I object to adding a new type to the stdlib just for this PEP. Since >iterating over the keys is significantly more useful than iterating over the >values, that suggests a dictionary as the most appropriate type.
I'm okay with dropping immutability for sys.implementation, but I still think attribute access is a more useful model. You can easily support both getattr and getitem with a class instance, so I think that's the way to go. (FWIW, immutability would also be easy to support with an instance.) -Barry
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