Last iteration?

Paul Hankin paul.hankin at gmail.com
Fri Oct 12 15:25:00 CEST 2007


On Oct 12, 2:18 pm, Carsten Haese <cars... at uniqsys.com> wrote:
> On Fri, 2007-10-12 at 12:58 +0200, Florian Lindner wrote:
> > Hello,
> > can I determine somehow if the iteration on a list of values is the last
> > iteration?
>
> > Example:
>
> > for i in [1, 2, 3]:
> >    if last_iteration:
> >       print i*i
> >    else:
> >       print i
>
> > that would print
>
> > 1
> > 2
> > 9
>
> Here's another solution:
>
> mylist = [1,2,3]
> for j,i in reversed(list(enumerate(reversed(mylist)))):
>   if j==0:
>      print i*i
>   else:
>      print i

Nice! A more 'readable' version is:

mylist = [1,2,3]
for not_last, i in reversed(list(enumerate(reversed(mylist)))):
  if not_last:
     print i
  else:
     print i * i

--
Paul Hankin




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