Annoying behaviour of the != operator

[greg]

David M. Cooke wrote:

>>To solve that, I would suggest a fourth category of "arbitrary
>>ordering", but that's probably Py3k material.
> 
> We've got that: use hash().
> [1+2j, 3+4j].sort(key=hash)

What about objects that are not hashable?

The purpose of arbitrary ordering would be to provide
an ordering for all objects, whatever they might be.

Greg