Python vs. Ruby

[Justin Shaw]

>     * breaking object-orientation to return new objects when sorting
>       sequences ;)
<snip>
>           o might also want to explain that it's not a hard thing to fix
>             at some point in Python (if the powers-that-be want to) by
>             adding "sorted" and "reversed" methods to the list object
>             (no clue why you want "append" to create a new list, sounds
>             silly to me ;) ).

You don't have to return a "new" list.  What is non-object oriented about
this?

>>> class List(list):
 def sort(self):
    list.sort(self)
    return self
 def append(self, item):
    list.append(self, item)
    return self


>>> l = List([3, 2, 1])
>>> l.append(5).sort()
[1, 2, 3, 5]