Permanent objects?

[Aahz]

In article <mailman.1040762492.3113.python-list at python.org>,
Dave Brueck  <dave at pythonapocrypha.com> wrote:
>Tim Peters makes a boo-boo for once:
>>
>> For example, never use "is" to compare immutable objects, unless you
>> don't care what the result is <wink>.  The optimizations can (and do)
>> change across Python releases.
>
>Does this also apply to None?

<snicker>  Point to you.  True and False work like None, too -- but
they're specifically singleton objects.
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

"I disrespectfully agree."  --SJM