Python井字游戏

import sys

def print_board():
    for i in range(3):
        for j in range(3):
            print map[2 - i][j],
            if j != 2:
                print '|',
        print ''

def check_done():
    for i in range(3):
        if map[i][0] == map[i][1] == map[i][2] != ' ' or map[0][i] == map[1][i] == map[2][i] != ' ':
            print turn, "Won!!!"
            return True

    if map[0][0] == map[1][1] == map[2][2] != ' ' or map[0][2] == map[1][1] == map[2][0] != ' ':
        print turn, "Won!!!"
        return True
    
    if ' ' not in map[0] and ' ' not in map[1] and ' ' not in map[2]:
        print "Draw"
        return True

    return False

turn = 'X'
done = False
map = [[' ', ' ', ' '],
        [' ', ' ', ' '],
        [' ', ' ', ' ']]
print "Please select position by typing in a number between 1 and 9, see below for which number that is which position..."
print "7|8|9"
print "4|5|6"
print "1|2|3"
print_board()
while done != True:
    print turn + "'s turn"
    try:
        pos = input("Select: ")
        if 1 <= pos <= 9:
            X = (pos - 1) / 3
            Y = (pos - 1) % 3
            if map[X][Y] == ' ':
                map[X][Y] = turn
                print_board()
                done = check_done()
                if done == False:
                    if turn == 'X':
                        turn = 'O'
                    else:
                        turn = 'X'
    except:
        print "You need to add a numeric value"