When is min(a, b) != min(b, a)?

[Marc 'BlackJack' Rintsch]

On Fri, 25 Jan 2008 07:57:38 +0000, Pete Forman wrote:

> Mark Dickinson <dickinsm at gmail.com> writes:
> 
>  > Any change to Python that made == and != checks involving NaNs raise
>  > an exception would have to consider the consequences for set, dict,
>  > list membership testing.
>  > […]
>  > and if Python had separate operators for these two purposes it
>  > wouldn't be Python any more.
> 
> There are separate Python operators, "==" and "is".

So what?  ``==`` is used for both ``==`` and set/dict/list membership
testing and "nested comparison" of those structures.  There is no ``is``
involved.

Ciao,
	Marc 'BlackJack' Rintsch