The SequenceIterator class of Section 2.3.4 provides what is known as a forward iterator. Implement a class named ReversedSequenceIterator that serves as a reverse iterator for any Python sequence...

forward iterator. Implement a class named ReversedSequenceIterator that

serves as a reverse iterator for any Python sequence type. The first call to

next should return the last element of the sequence, the second call to next

should return the second-to-last element, and so forth.