Support pickling (via __reduce__?)
-Make inspect and pydoc do the right thing for new-style classes.
-
Support mixed multiple inheritance from classic and new-style classes?
Change __getattr__ to be more like classic __getattr__, and introduce
Done (mostly)
-------------
+Make inspect and pydoc do the right thing for new-style classes. ***
+done ***
+
Do binary operators properly. nb_add should try to call self.__add__
and other.__radd__. I think I'll exclude base types that define any
binary operator without setting the CHECKTYPES flag. *** This is