[lang-ref] ( shift_item ) ( python )

def test_shift_item():
    # pop(0)
    items = ['A', 'B', 'C', 'D', 'E']

    v = items.pop(0)

    assert v == 'A'
    assert items == ['B', 'C', 'D', 'E']

    # if performance matters, consider using popleft in collections.deque