October 25, 2018:

The files in this directory are used to teach some basic python.  Files:

data5x4.txt  -- a data file with 5 groups that specify preferences over 4 days

simple_reader.txt  -- a simple program to read and process the data

polite_reader.txt  -- like simple_reader.txt, but it asks the user to
                      specify the number of groups, number of days, and 
                      data file

polite_reader.py  -- a file we can run from a terminal window.  On a Mac we 
                     add "#!/bin/usr/python" and allow execute permissions
                     on this file; in Windows/DOS you do something similar.