Steven D'Aprano a écrit : > On Fri, 16 Nov 2007 18:28:59 +0100, Bruno Desthuilliers wrote: > >>> Question 1: >>> >>> Given that the user of the API can choose to override foo() or not, how >>> can I control the signature that they use? >> While technically possible (using inspect.getargspec), trying to make >> your code idiot-proof is a lost fight and a pure waste of time. > > > Worse: it's actually counter-productive! > > The whole idea of being able to subclass a class means that the user > should be able to override foo() *including* the signature.
If you see subclassing as subtyping, the signatures should always stay fully compatibles. -- http://mail.python.org/mailman/listinfo/python-list