def select_letters(self):
"""
prompt human player to pick a letter
"""
choices = ['O','X']
while(True):
#while not (selection == 'X' or selection == 'O'):
selection = raw_input('Choose X OR O\n').upper()
if selection in choices:
choices.remove(selection)
self.board = board.board(human=selection, computer= choices[0])
break
def setUp(self):
self.board = board.board(human='O', computer='X')