def make_ratio_groups(self):

    list_of_lists_of_tuples = []
    for part in whole:
        list_of_lists_of_tuples.append(some_object.list_of_tuples)

    all_groups = itertools.product(*list_of_lists_of_tuples)

    # Mapping and casting to list is necessary to put in the correct format for a subsequent function
    all_groups_list = list(map(list, all_groups))

    return all_groups_list