Hi, I'm trying to create a class which inherit a list to change some behavior. This list should contain other instance objects and has to manage these instances in a particular way.
1) I need to sort this elements in this list, but they must be sorted using an instance variable. What does Python use to sort elements? I mean, there is a __sort__ method in the class list or it just uses comparison operators? In this case, shall I just redefine this operators in the element classes? 2) I need to have just unique elements. Maybe this is related to first question (or maybe not). Again, to estabilish the uniqueness of an element I have to use an instance variable. I think I have to rewrite both the methods append() and __contains__(), but I'm not sure how. For the first one I did: def append(self, element): if element in self: pass else: list.append(self, element) It seems right to me, but I have no idea what to do with __contains__() Suggestion? -- http://mail.python.org/mailman/listinfo/python-list