1 class A: pass 2 a = A() 3 4 a.x = 1, 2, 3 5 a.y = "1", 1, 1.1 6 a.z = 1, a.y, "1" 7 8 c = b = a.x 9 e = d = a.y 10 g = f = a.z 11 12 [x, y, z] = c 13 x, y, z = c 14 15 [p, q, r] = e 16 p, q, r = e 17 18 [l, m, n] = g 19 l, m, n = g 20 21 l, (m1, m2, m3), n = g