["python","list","iteration"]
Is there a better way to iterate over two lists, getting one element from each list for each iteration?

I have a list of Latitudes and one of Longitudes and need to iterate over the latitude and longitude pairs. Is it better to: A. Assume that the lists are of equal lengths: for i in range(len(Latitudes)): Lat,Long=(Latitudes[i],Longitudes[i]) B. Or: for Lat,Long in [(x,y) for x in Latitudes for y in Longitudes]: (Note that B is incorrect. This gives me all the pairs, equivalent to itertools.product()) Any thoughts on the relative merits of each, or which is more pythonic?
This is as pythonic as you can get: for lat, long in zip(Latitudes, Longitudes): print(lat, long)