[docs] [issue15243] Misleading documentation for __prepare__

Berker Peksag added the comment: The documentation should mention that the __prepare__ method must be implemented as a classmethod (see msg164697 for the reference.) The example at https://docs.python.org/dev/reference/datamodel.html#metaclass-example needs to be linked from the "Preparing the class namespace" section. ---------- nosy: +berker.peksag _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue15243> _______________________________________