Коробки (@sshhaaggy)

task_43.py

def cmp(a, b):
    """Helper, because python3 does not  have cmp"""    
    return (a > b) - (a < b)

def task_43(A1,B1,C1, A2,B2,C2):
    box1 = sorted((A1,B1,C1))
    box2 = sorted((A2,B2,C2))

    cmp_list = set(sorted(map(lambda el1, el2: cmp(el1, el2), box1, box2)))
    cmp_list.remove(0)
    
    if not cmp_list:
        msg = "Boxes are equal"
    elif len(cmp_list) == 1 and 1 in cmp_list:
        msg = "The first box is larger than the second one"
    elif len(cmp_list) == 1 and -1 in cmp_list:
        msg = "The first box is smaller than the second one"
    else:
        msg = "Boxes are incomparable"

    return msg

context_1 = dict(
    A1 = 1, B1 = 2, C1 = 3,
    A2 = 3, B2 = 2, C2 = 1)
print(task_43(**context_1))

context_2 = dict(
    A1 = 2, B1 = 2, C1 = 3,
    A2 = 3, B2 = 2, C2 = 1)
print(task_43(**context_2))

context_3 = dict(
    A1 = 2, B1 = 2, C1 = 3,
    A2 = 3, B2 = 2, C2 = 3)
print(task_43(**context_3))

context_4 = dict(
    A1 = 3, B1 = 4, C1 = 5,
    A2 = 2, B2 = 4, C2 = 6)
print(task_43(**context_4))