[Python-Dev] Summary of "dynamic attribute access" discussion

["Martin v. Löwis"]

Anthony Baxter schrieb:
>> and the "wrapper class" idea of Nick Coghlan:
>>    attrview(obj)[foo]
> 
> This also appeals - partly because it's not magic syntax <wink>

I also like this. I would like to spell it attrs, and
I think its specification is

class attrs:
   def __init__(self, obj):
     self.obj = obj
   def __getitem__(self, name):
     return getattr(self.obj, name)
   def __setitem__(self, name, value):
     return setattr(self.obj, name, value)
   def __delitem__(self, name):
     return delattr(self, name)
   def __contains__(self, name):
     return hasattr(self, name)

It's so easy people can include in their code for backwards
compatibility; in Python 2.6, it could be a highly-efficient
builtin (you still pay for the lookup of the name 'attrs',
of course).

Regards,
Martin