appendix hcomplete programs for datapoint in datapoints datapoint float value float value goto dot update add_command load data ,commandl add_command ,commands add_cascade ,menuf menub canvas width = = pack left wt screen et getscreen screen none loadfile self datafile strip def main tk none len argv sys argv plotapp plotapp mainloop program completed __name__ =__main__ main the tic tac toe application this is the starter code for an exercise in constructing tic tac toe game this program can be downloaded from the text' website from import import messagebox import import random import math import import time import screenmin screenmax human - computer board when board you may want make copy board this copy belongs to 'acha