python: combine 2 ordered lists into list of tuples

Question

I have 2 lists that I want to combine into a single list of tuples, so that order is maintained and the result[i] is (first[i], second[i]). Assume

Answer 1

Use izip:

>>> first = [1,2,3]
>>> second = [4,5,6]

>>> from itertools import izip
>>> gen = izip(first, second)
>>> [(i, j) for i, j in gen]
[(1, 4), (2, 5), (3, 6)]