log ch3ex4.py @ 31:a2358c64d9af

age author description
Mon, 10 Dec 2012 19:58:03 -0600 Brian Neal Completing Ch 3.3, exercise 4.2.
Mon, 10 Dec 2012 19:42:38 -0600 Brian Neal Completing Ch 3.4 exercise 4.1.
Mon, 10 Dec 2012 19:36:47 -0600 Brian Neal Adding author's Map.py as ch3ex4.py to represent the original version before