Appendix B -- shuffle

The description of the shuffle method in Appendix B is incorrect. shuffle modifies the list in place and returns None, not the shuffled list.

Session 8.7

The example session on page 284, Session 8.7 has print statements that are missing parenthesis. This will cause a syntax error under Python 3.x For example the first two lines should look like this:

>>> d = neighborCount(text)
>>> print(d['e'])

Other print statements in this session should also have parenthesis.