tic tac toe - Why my TicTacToe game doesn't complete running the codes? (Python 2.7.9) -

when run codes,it gets stuck after choose wether play first or not. so, here codes:

#tictactoe game import random  null = '' new = ['','','','','','','','',''] player = '' computer = ''   #x or o signs def sign(player, computer):     player = raw_input('please choose either x or o:')     while player not in ('x','x','o','o'):         print ('not appropriate choice!')         player = raw_input('please choose either x or o;')     if player == 'x' or player == 'x':         print ('you have chosen x!')         computer = 'o'     else:         print ('you have chosen o!')         computer = 'x'     return player.upper(), computer.upper()   #which player play first def whoplaysfirst():     shift = none     while shift not in ('yes','yes','yes','no','no','no'):         shift = raw_input('do want play first? yes or no:')         if shift == 'yes' or shift == 'yes' or shift == 'yes':             return 1         elif shift == 'no' or shift == 'no' or shift == 'no':             return 0         else:             print ('it invaild choice!')  def theboard(move):       print ("=================================")     print ("[*]        :        :         [*]")     print "[*]  " , move[1] ,       "    :   " , move[2] ,         "   :    " , move[3] ,            "   [*]"     print ("[*]        :        :         [*]")     print ("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")     print ("[*]        :        :         [*]")     print "[*]  " , move[4] ,       "    :   " , move[5] ,         "   :    " , move[6] ,            "   [*]"     print ("[*]        :        :         [*]")     print ("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")     print ("[*]        :        :         [*]")     print "[*]  " , move[7] ,       "    :   " , move[8] ,         "   :    " , move[9] ,            "   [*]"     print ("[*]        :        :         [*]")     print ("=================================")   def winner_computer():     print ("sorry lost!")  def winner_player():     print("you won!")  def firstmove_player(player, computer, new):     while winn(player, computer, new) none:         turn = player_turn(player, new)         new[int(turn)] = player         theboard(new)         if winn(player, computer, new) != none:             break         else:             pass         print("the computer choose..")         c_turn = computer_turn(player, computer, new)         print c_turn         new[int(c_turn)] = computer         theboard(new)     pr = winn(player, computer, new)     if pr == 1:         winner_player()     elif pr == 0:         winner_computer()     else:         print("it tie :/")   def firstmove_computer(player, computer, new):     while not winn(player, computer, new):         print("the computer take..")         c_turn = computer_turn(player, computer, new)         print c_turn         new[c_turn] = computer         theboard(new)         if winn(player, computer, new) != none:             break         else:             pass         turn = player_turn(player, new)         new[int(move)] = player         theboard(new)     pr = winn(player, computer, new)     if pr == 1:         winner_player()     elif pr == 0:         winner_computer()     else:         print("it tie :/")   def winn(player, computer, new):     possibilities = ((1,2,3),(4,5,6),(7,8,9),(1,4,7),(2,5,8),(3,6,9),(1,5,9),(3,5,7))     in possibilities:         if new[i[1]] == new[i[2]] == new[i[3]] != null:             winner = new[i[1]]             if winner == player:                 return 1             elif winner == computer:                 return 0             if null not in new:                 return 'tie!'     if null not in new:         return 'tie'     return none   def player_turn(player, new):     move = raw_input("which box want put in?:")     while true:         if move not in ('1','2','3','4','5','6','7','8','9'):             print("that invalid move")             move = raw_input("which box want put in?:")         elif new[int(move)] != null:             print ("this box taken, please choose one")             move = raw_input("which box want put in?:")         else:             return int(move)    def computer_turn(player, computer, new):     choicest = [9, 7, 5, 1, 3]     blank = []     in range(0,9):         if new[i] == null:             blank.append(i)      in blank:         new[i] = computer         if winn(player, computer, new) 0:              return         new[i] = null      in blank:             new[i] = player             if winn(player, computer, new) 1:                  return             new[i] = null      return int(blank[random.randrange(len(blank))])   def enterance():     #intro. game     print ("welcome to...")     print ("############         ##############                #############")     print ("############         ##############                #############")     print ("    ####    wwwwwwwww     ####         xxxxxxxxx        ####")     print ("    ####ooo www*****w     ####         xxx&&&&&&        ####         wwwwwwwwwww")     print ("    ####ooo wwwwwwwww     ####         xxxxxxxxx        ####         www     www")     print ("    ####    www           ####ggggggg  xxx              ####dddddddd wwwwwwwwwww")     print ("    ####o#o www           ####g@@@@@g  xxx              ####ddddddkd ww%%%%%%%ww")     print ("    ####o#o www           ####g@@@@@g  xxx              ####d    dkd wwwwwwwwwww")     print ("    ####o#o wwwwwwwww     ####g@@@@@@ggggggxxxxx        ####d    dkd ww")     print ("    ####o#o www*****w     ####g@@@@@@@@@@@gx&&&&        ####ddddddkd ww")     print ("    ####o#o wwwwwwwww     ####ggggggg ggggggxxxxx       ####ddddddkd wwwwwwwwwww")     print ("all have choose number can make move")     print ("and here how game board like:")     print ("                                    ")     print ("====================================")     print ("[*]        :          :          [*]")     print ("[*]    1   :     2    :     3    [*]")     print ("[*]        :          :          [*]")     print ("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")     print ("[*]        :          :          [*]")     print ("[*]    4   :     5    :     6    [*]")     print ("[*]        :          :          [*]")     print ("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")     print ("[*]        :          :          [*]")     print ("[*]    7   :     8    :     9    [*]")     print ("[*]        :          :          [*]")     print ("====================================")     print ("                let's              start                game!!             ")   def main(player, computer, new):     enterance()     move = sign(player, computer)     player = move[0]     computer = move[1]     b = whoplaysfirst()     if b == 1:         print ("you play first.")         print ("lets start. here our game board!")         theboard(new)         firstmove_player(player, computer, new)     elif b == 0:         print ("the computer play first")         print ("lets begin game. our game board!")         theboard(new)         firstmove_computer(player, computer, new)     else:         pass   main(player, computer, new) raw_input("tab enter exit") 

and here error message when codes stuck @ point:

traceback (most recent call last):   file "c:\users\hany\documents\nona cs\mytictactoe3.py", line 214, in <module>     main(player, computer, new)   file "c:\users\hany\documents\nona cs\mytictactoe3.py", line 203, in main     theboard(new)   file "c:\users\hany\documents\nona cs\mytictactoe3.py", line 50, in theboard     print "[*]  " , move[7] ,       "    :   " , move[8] ,         "   :    " , move[9] ,            "   [*]" indexerror: list index out of range 

can please tell i've done wrong , how fix it? appreciate thanks!

your variable newis list , first index of list 0. should change def theboard(move). should start move[0] , not move[1] because move[9] ist 9th index of list maximum 8.

the same problem should in def winn(player, computer, new) new[i[1]].

see this learn how use lists.

edit: have same problem in def player_turn(player, new). when correct there too, should work.