Bruno Desthuilliers wrote: > <my humble opinion> > Python is dynamic, and fighting against the language is IMHO a really > bad idea. The only places where theres a real need for this kind of > stuff are when dealing with the "outside world" (IOW : inputs and > outputs). And then packages like formencode can do much more than mere > type-checking > </my humble opinion>
Agreed. The worst case I have seen: An elaborate decorator (similar to the OP's) laboriously checks arg types. That's IMHO not "consenting adults" territory. But it gets a whole lot worse when it's applied to a method whose body is like this: if isinstance(.... action_for_type1(... # big snip elif isinstance(... action_typeN( ... # no else statement -- http://mail.python.org/mailman/listinfo/python-list