__setattr__/__getattr__

[Oleg Orlov]

>From tutorial 9.6
>
>There is limited support for class-private identifiers. Any identifier
>of the form __spam (at least two leading underscores, at most one
>trailing underscore) is now textually replaced with _classname__spam,
>where classname is the current class name with leading underscore(s)
>stripped.

There is no such replacement inside ordinary methods of the class!
Why __setattr__ is extraordinary?

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Oleg Orlov