[Claudio Grondi] > The still open question for me then is: > Why does min() not raise an error in case > there is no comparison function definition > for the feeded objects available?
Actually, there is a comparison function for class instances. Unfortunately, the default method is not very useful in your case. It works a bit like this: def __cmp__(self, other): return cmp(id(self), id(other)) This is mildly useful as it allows distinct objects to have an ordering relation. Raymond -- http://mail.python.org/mailman/listinfo/python-list