On 6/16/10 6:10 AM, Peter Otten wrote:
> Thomas Lehmann wrote:
>
>>> class AutoValueDict(dict):
>>> def __makeitem__(self, key):
>>> return self.setdefault(key, {})
>
> I think it's bad style to invent your own __whatever__() methods, I'd rather
> call them _whatever().It goes a bit beyond bad style into, "it is explicitly forbidden", I think. Not that "forbidden" means, "Python will prevent you from trying", just that it says, "Don't do it." Leading-and-trailing double underscores are explicitly reserved for Python to define as Special. They also imply a slightly different calling semantic: normal leading-and-trailing double underscore methods bypass instance lookup. -- Stephen Hansen ... Also: Ixokai ... Mail: me+list/python (AT) ixokai (DOT) io ... Blog: http://meh.ixokai.io/
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