def test_1(): a = ['departure', 'execute', 'service', 'extreme', 'suppress'] print(list(filter(lambda x: x[0] == x[-1], a))) def filter_numbers(lst: list): return list(filter(lambda x: x%2 == 0 or abs(x) > 100, lst)) def main(): numbers = [-100, 2, -300, -400, 5, -60, -61, -101, 101] print(filter_numbers(numbers)) if __name__ == '__main__': main() # a = [1, 2, 3, 4, 5] # print(list(filter(None, a)))