[Python-Dev] UserDict in 2.7

[Raymond Hettinger]

There's an entry in whatsnew for 2.7 to the effect of "The UserDict class is now a new-style class".

I had thought there was a conscious decision to not change any existing classes from old-style to new-style.  IIRC, Martin had championed this idea and had rejected all of proposals to make existing classes inherit from object.


Raymond

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