Question

What is the output of the following program?
L1 = [1, 2, 3, 4]
L2 = L1
L3 = L1.copy()
L4 = list(L1)
L1[0] = [5]
print(L1, L2, L3, L4)

Accepted Answer

[[5], 2, 3, 4] [[5], 2, 3, 4] [1, 2, 3, 4] [1, 2, 3, 4]

Answer

[5, 2, 3, 4] [5, 2, 3, 4] [1, 2, 3, 4] [1, 2, 3, 4]

Answer

[[5], 2, 3, 4] [[5], 2, 3, 4] [[5], 2, 3, 4] [1, 2, 3, 4]

Answer

[5, 2, 3, 4] [5, 2, 3, 4] [5, 2, 3, 4] [1, 2, 3, 4]

Q. What is the output of the following program?
L1 = [1, 2, 3, 4]
L2 = L1
L3 = L1.copy()
L4 = list(L1)
L1[0] = [5]
print(L1, L2, L3, L4)

Discusssion