What does print(any([])) print? Python Lists, Tuples and Slicing

Answer, A. False

A. False

Correct. any() reports whether at least one element of the iterable is truthy, and an empty iterable has no elements at all, so the answer is False.

B. ValueError

Assumes any() requires at least one element to operate on and raises when given an empty iterable.

C. True

Confuses any() with all(), assuming an empty iterable vacuously satisfies the condition any() is checking for.

D. None

Assumes an empty iterable produces no boolean result at all instead of a definite False.

any() and all() are defined so that they always work on empty iterables without raising an error, they just disagree on what an empty iterable implies. any() finds no truthy element to point to, so it returns False, while all() has no falsy element to point to, so it returns True.