What is the output of the following Python code?g = (x * x for x in range(4)) print(sum(g), sum(g), list(g))

g = (x * x for x in range(4))
print(sum(g), sum(g), list(g))

Explanation

A generator can be consumed only once; the first sum() exhausts it (0 + 1 + 4 + 9 = 14), so the second sum() gives 0 and list() gives an empty list.