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...

itertools.product seems to do the trick but I am stuck in a little detail.

arrays = [(-1,+1), (-2,+2), (-3,+3)];

If I do

cp = list(itertools.product(arrays));

I get

cp = cp0 = [((-1, 1),), ((-2, 2),), ((-3, 3),)]

But what I want to get is

cp1 = [(-1,-2,-3), (-1,-2,+3), (-1,+2,-3), (-1,+2,+3), ..., (+1,+2,-3), (+1,+2,+3)].

I have tried a few different things:

cp = list(itertools.product(itertools.islice(arrays, len(arrays))));
cp = list(itertools.product(iter(arrays, len(arrays))));

They all gave me cp0 instead of cp1.

Any ideas?

Thanks in advance.