From: Just Another Victim of the Ambient Morality <ihatespam@...>
Date: 2006-09-13T23:50:40+09:00
Subject: What does it take to make an object hashable, no really...

    Suppose I want to define a class and be able to use this class as a key 
to a hash.  How does one do this?  ...And please test your response before 
posting it.
    Secondly, if an objects works in a hash, is it guaranteed to work in a 
set?
    Thank you...