Fredrik Lundh wrote: > Paul Boddie wrote: > [Quoting Jay Parlar...]
> > > I don't think I've ever seen anyone advocating calling a function like > > > getattr(obj "foo" + "bar")(). > > > > >From Lib/compiler/visitor.py: > > > > meth = getattr(self.visitor, 'visit' + className, 0) > > > > Later on: > > > > meth(node, *args) [...] > if you read Jay's assertion in context, your "refutation" strikes me as > somewhat silly. The context was whether you can know before running the program whether the function you're attempting to call exists, along with where it is defined. Obviously, it's a struggle to think of cases where one would do this for the sake of it (especially with hard-coded string literals), but where one wants to take some value (eg. a class name) and dispatch to some callable (eg. some visitor handler method) based on that dynamic information, it's a useful technique. Whether widespread usage of such a technique counts as advocacy is a matter I don't find particularly interesting to discuss. Or should I be looking for some other context here? Paul -- http://mail.python.org/mailman/listinfo/python-list
