[Tutor] Testing for empty list
tmatsumoto at gmx.net
Mon Oct 19 09:26:16 CEST 2009
The while loop will print each index of the list. In a way it checks that if the list is empty by printing the items. As far as I know there isn't any 'True' or 'False' output from a list.
If you want to do something if mylist is empty you can check it like this:
if not mylist:
... do something ...
-------- Original-Nachricht --------
> Datum: Sun, 18 Oct 2009 20:29:53 -0500
> Von: Wayne <srilyk at gmail.com>
> An: "tutor at python.org" <Tutor at python.org>
> Betreff: [Tutor] Testing for empty list
> Hi, I think I recall seeing this here, but I wanted to make sure I'm
> Is the best way to test for an empty list just test for the truth value?
> mylist = [1,2,3]
> while mylist:
> print mylist.pop()
> To be considered stupid and to be told so is more painful than being
> gluttonous, mendacious, violent, lascivious, lazy, cowardly: every
> every vice, has found its defenders, its rhetoric, its ennoblement and
> exaltation, but stupidity hasn’t. - Primo Levi
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