>>> x = [1, 2, 3]
>>> y = [4, 5, 6]
>>> zipped = zip(x, y)
>>> zipped
[(1, 4), (2, 5), (3, 6)]
# you may want to check itertools.product
from itertools import product
l1 = [0, 1]
l2 = [2, 3]
for x in product(l1, l2, repeat = 1):
print(x)
>>>
(0, 2)
(0, 3)
(1, 2)
(1, 3)