# lambda param : action(param) my_list = [1,2,3] print(list(map(lambda item: item*2, my_list))) # Excercises # Square my_list = [5, 4, 3] print(list(map(lambda item: item*item, my_list))) # List Sorting a = [(0, 2), (4, 3), (9, 9), (10, -2)] a.sort(key=lambda x: x[1]) print(a)