What is the output of the following code? “`python x = [1, 2, 3] y = x y.append(4) print(x) “`

Question

Python Developer — Hard

What is the output of the following code? “`python x = [1, 2, 3] y = x y.append(4) print(x) “`

Accepted Answer

The output of the code is [1, 2, 3, 4] because when y is assigned to x, they refer to the same list in memory. Therefore, when y.append(4) is called, it modifies the original list referenced by x as well.