How to apply itertools.product to elements of a list of lists?

Question

I have a list of arrays and I would like to get the cartesian product of the elements in the arrays.

I will use an example to make this more concrete...

iter

Answer 1

>>> arrays = [(-1,+1), (-2,+2), (-3,+3)]
>>> list(itertools.product(*arrays))
[(-1, -2, -3), (-1, -2, 3), (-1, 2, -3), (-1, 2, 3), (1, -2, -3), (1, -2, 3), (1, 2, -3), (1, 2, 3)]