itertools.product() - list of lists (Cartesian product)

Question

I know how to use itertools.product() but I have a problem. This function takes many list separated with comma. I want to use it with list of lists. For example:
my_list = [[1,2,3], ['a', 'b', 'c'], ['alpha', 'beta', 'gamma']]
and result:
(1, 'a', 'alpha'), (1, 'a', 'beta'), (1, 'a', 'gamma'), (1, 'b', 'alpha') ... etc.

I don't know how many elements are in my_list, so I cannot do something like this:
itertools.product(my_list[0], my_list[1]), my_list[2])

So, will you help me? ;)

Answer 1

Itertools.product(*my_list)
And that wasn't easy I tried many other ways but failed and somehow i realized I need to get those elements as they are in list so doing product(my_list[0]) will work but didn't, then I got reminded of * which unpacks the list item :-)

Answer 2

Have you tried just unpacking my_list inside the 'product'? I've not got my IDE on right now to check if that's possible.