At 01:19 PM 4/29/2007 -0400, Calvin Spealman wrote: >Backward compatability of the super type API raises some issues. Names, the >lookup of the __call__ of the super type itself, which means a conflict with >doing an actual super lookup of the __call__ attribute. Namely, the following >is ambiguous in the current proposal: > > :: > > super.__call__(arg) > >Which means the backward compatible API, which involves instansiating the >super >type, will either not be possible, because it will actually do a super lookup >on the __call__ attribute, or there will be no way to perform a super >lookup on >the __call__ attribute. Both seem unacceptable, so any suggestions are >welcome.
Note that if you have a class with a __call__ method, it will still be called, even if you override __getattribute__ to return something else when asked for the __call__ attribute, e.g.: >>> class DoubleCall(object): ... def __call__(self): ... return "called!" ... def __getattribute__(self, attr): ... if attr=='__call__': ... return lambda: "attribute" >>> dc = DoubleCall() >>> dc() 'called!' >>> dc.__call__() 'attribute' _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
