Perform I/O by reading from files rather than user input

Organize data records into lists of lists

Continue practicing top-down design (TDD)

Begin to evaluate searching

bestInShow.txt: Dog show winner data file

colors.txt: A file containing the names of colors

fileDemo.py: An example of reading an entire file at once

guessing.py: A guessing game to help us think about searching

showContents.py: An example of reading a file one line at a time

winners.py: Practice program for reading data records into lists of lists