For loop with 2 elements. No zip

[ndc85430]

If you wanted to make a single sequence from the two, you could use chain from the itertools module, e.g.

>>> import itertools
>>> x = [1, 2, 3]
>>> y = [4, 5, 6]
>>> itertools.chain(x, y)
<itertools.chain object at 0x7f38338dfb90>
>>> list(itertools.chain(x, y))
[1, 2, 3, 4, 5, 6]

chain returns an iterator (basically a form of lazy sequence), so I pass that to list to force evaluation of all the items (I could have printed or something too, of course).