TicTacToe 2.2

#Tic Tac Toe v002.2
# Originally written by Scott Beardwood with modification by Lee Crocker
# This version has further mods (boardTest function) by Darryl Medley for TWiT Coding 101
import random
def drawboard():
    print
    print " %s| %s| %s" % (board[1],board[2],board[3])
    print "__|__|__"
    print " %s| %s| %s" % (board[4],board[5],board[6])
    print "__|__|__"
    print " %s| %s| %s" % (board[7],board[8],board[9])
    print
    return

wins = [
    [1,2,3], [4,5,6], [7,8,9],
    [1,4,7], [2,5,8], [3,6,9],
    [1,5,9], [3,5,7] ]

def boardTest(testType, mark1, mark2):
    for w in wins:   # loop through all potential win combos
        # create a sub-list containing the marks (values) of the 3 board list spots
        # we want to test using the w sub-list of wins as indexes of the board list
        boardMarks = [board[x] for x in w]   # use "list comprehension" to create list

        if testType == "isWinner":
            if boardMarks.count(mark1) == 3:
                return True   # all 3 spots are X's or 0's
        else:   # testMode is canWin or blockMove
            if (boardMarks.count(mark1) == 2) and (boardMarks.count(mark2) == 0):
                # 2 mark1s and a no mark2 qualifies for a winning or blocking move
                # We need to return the unmarked board #. Use a "generator" to get the index.
                return w[next((idx for idx, mrk in enumerate(boardMarks) if mrk != mark1))]

    return 0   # no tests returned true so return false


#Start of main game.
#
game = 0
random.seed()
while (game == 0):

    board = ["-","1","2","3","4","5","6","7","8","9"]
    print "Welcome to Tic Tac Toe"
    print
    player1 = raw_input("Player one's name? ")
    player2 = raw_input("Player two's name? (type 'python' for computer opponent) ")
    movesplayed = 0
    playersturn = 1
    gamewon = False
    while (movesplayed < 9):
        drawboard()
        if playersturn == 1:
            nextmove = raw_input("Your Move %s ? " % (player1))
            if board[(int(nextmove))] == nextmove:
                board[(int(nextmove))] = "X"
                if boardTest("isWinner","X",""):
                    gamewon = True
                    winner = player1
                    break
                playersturn = 0
                movesplayed = movesplayed+1
            else:
                print "the move was invalid or space has been taken"
        else:
            if player2.lower() == "python":
                checkWin = boardTest("canWin","0","X")
                stopwin = boardTest("blockMove","X","0")
                if not checkWin:
                    if not stopwin:
                        nextmove = str(random.randrange(1,9))
                    else:
                        nextmove = str(stopwin)
                    print "Python's move was %s " % (nextmove)
                else:
                    nextmove = str(checkWin)
                    print "Python's move was %s " % (nextmove)
            else:
                nextmove = raw_input("Your Move %s ? " % (player2))

            if board[(int(nextmove))] == nextmove:
                board[(int(nextmove))] = "0"
                if boardTest("isWinner","0",""):
                    gamewon = True
                    winner = player2
                    break
                playersturn = 1
                movesplayed = movesplayed+1
            else:
                print "the move was invalid or space has been taken"

    if gamewon:
        drawboard()
        print "Congratulations %s! You won this game." % winner
    else:
        print "Oh well %s the game with %s was a draw....." % (player1,player2)

    print

    if raw_input("Play again? (Y or N) ").lower() == 'n':
        game = 1