Iterate using tuple as index

[James Stroud]

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?

James

-- 
James Stroud, Ph.D.
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095