Iterate using tuple as index

[F. Petitjean]

Le Thu, 10 Mar 2005 13:12:31 -0800, James Stroud a écrit :
> Hello,
> 
> Its not obvious to me how to do this. I would like to iterate using a tuple as 
> an index. Say I have two equivalently sized arrays, what I do now seems 
> inelegant:
> 
> for index, list1_item in enumerate(firstlist):
>   do_something(list1_item, secondlist[index])
> 
> I would like something more like this:
> 
> for list1_item, list2_item in (some_kind_of_expression):
>   do_something(list1_item, list2_item)
> 
> Practically, I'm not so sure B is better than A, but the second would be a 
> little more aesthetic, to me, at least.
> 
> Any thoughts on what "some_kind_of_expression" would be?
It is called "zip"
for list1_item, list2_item in zip(firstlist, secondlist):
   ....
try:  help(zip)
> 
> James
>