On Sun, Mar 2, 2014 at 4:29 AM, Marko Rauhamaa <marko at pacujo.net> wrote: > You might even (foolishly) define a class such that: > > >>> a == b > False > >>> a != b > False Not necessarily even foolish; the SQL NULL value [1] behaves like that. ChrisA [1] Which isn't a value, except when it is