Removing None objects from a sequence

[Kirk Strauser]

At 2008-12-12T15:51:15Z, Marco Mariani <marco at sferacarta.com> writes:

> Filip Gruszczyński wrote:
>
>> I am not doing it, because I need it. I can as well use "if not elem
>> is None",

> I suggest "if elem is not None", which is not quite the same.

So what's the difference exactly?  "foo is not None" is actually surprising
to me, since "not None" is True.  "0 is True" is False, but "0 is not None"
is True.  Why is that?
-- 
Kirk Strauser
The Day Companies