is None or == None ?

[Hrvoje Niksic]

"Alf P. Steinbach" <alfps at start.no> writes:

> But wow. That's pretty hare-brained: dynamic allocation for every
> stored value outside the cache range, needless extra indirection for
> every operation.
>
> Even Microsoft COM managed to get this right.
>
> On the positive side, except that it would probably break every C
> module (I don't know), in consultant speak that's definitely a
> potential for improvement. :-p

Tagged integers have been tried, shown not really worth it, and
ultimately rejected by the BDFL:

http://mail.python.org/pipermail/python-dev/2004-July/thread.html#46139