Ordering python sets

[greg]

On approximately 10/27/2008 10:27 AM, came the following characters from
the keyboard of Peter Otten:

> Here's a class that can negate arbitrary values
>
> ...     def __init__(self, value):
> ...             self.value = value
> ...     def __cmp__(self, other):
> ...             return -cmp(self.value, other.value)

Unfortunately, the __cmp__ method has been eliminated from
3.0 as well, so this won't work as-is. You would need to
override __lt__, __eq__, etc.

-- 
Greg