shuffled
The random module's shuffle method mixes up (shuffles) the elements of a list in place, thus its return value is None. Because of this we cannot contract several operations, so for instance we cannot express easily the following: "shuffle the elements of the list and then return with the last element" ( the following doesn't work: random.shuffle(list1)[-1] ).
Exercise
Create a function called shuffled, which returns with the shuffled list, making an operation like this possible: shuffled(list1)[-1] . Make sure that shuffled() doesn't modify the original list! In this respect, it should be similar to sorted().
