tic tac toe game python against computer code example

Example 1: how to make tic tac toe in python

# Python Program for simple Tic Tac Toe

board = ["-", "-", "-",
         "-", "-", "-",
         "-", "-", "-"]

game_still_going = True

winner = None

current_player = "X"

def play_game():

    display_board()

    while game_still_going:
        handle_turn(current_player)
        check_if_game_over()
        flip_player()
    if winner == "X" or winner == "O":
        print(winner + " won.")
    elif winner is None:
        print("Tie.")

def display_board():
    print("\n")
    print(board[0] + " | " + board[1] + " | " + board[2] + "     1 | 2 | 3")
    print(board[3] + " | " + board[4] + " | " + board[5] + "     4 | 5 | 6")
    print(board[6] + " | " + board[7] + " | " + board[8] + "     7 | 8 | 9")
    print("\n")

def handle_turn(player):
    print(player + "'s turn.")
    position = input("Choose a position from 1-9: ")


    valid = False
    while not valid:
        while position not in ["1", "2", "3", "4", "5", "6", "7", "8", "9"]:
            position = input("Choose a position from 1-9: ")
        position = int(position) - 1
        if board[position] == "-":
            valid = True
        else:
            print("You can't go there. Go again.")
    board[position] = player
    display_board()

def check_if_game_over():
    check_for_winner()
    check_for_tie()

def check_for_winner():
    global winner
    row_winner = check_rows()
    column_winner = check_columns()
    diagonal_winner = check_diagonals()
    if row_winner:
        winner = row_winner
    elif column_winner:
        winner = column_winner
    elif diagonal_winner:
        winner = diagonal_winner
    else:
        winner = None

def check_rows():
    global game_still_going
    row_1 = board[0] == board[1] == board[2] != "-"
    row_2 = board[3] == board[4] == board[5] != "-"
    row_3 = board[6] == board[7] == board[8] != "-"
    if row_1 or row_2 or row_3:
        game_still_going = False
    if row_1:
        return board[0]
    elif row_2:
        return board[3]
    elif row_3:
        return board[6]
    else:
        return None

def check_columns():
    global game_still_going
    column_1 = board[0] == board[3] == board[6] != "-"
    column_2 = board[1] == board[4] == board[7] != "-"
    column_3 = board[2] == board[5] == board[8] != "-"
    if column_1 or column_2 or column_3:
        game_still_going = False
    if column_1:
        return board[0]
    elif column_2:
        return board[1]
    elif column_3:
        return board[2]
    else:
        return None

def check_diagonals():
    global game_still_going
    diagonal_1 = board[0] == board[4] == board[8] != "-"
    diagonal_2 = board[2] == board[4] == board[6] != "-"
    if diagonal_1 or diagonal_2:
        game_still_going = False
    if diagonal_1:
        return board[0]
    elif diagonal_2:
        return board[2]
    else:
        return None

def check_for_tie():
    global game_still_going
    if "-" not in board:
        game_still_going = False
        return True
    else:
        return False

def flip_player():
    global current_player
    if current_player == "X":
        current_player = "O"
    elif current_player == "O":
        current_player = "X"
play_game()

Example 2: tic tac toe algorithm python

#algorithim for X player
#python 3.85


import random


def algoX(lisp):
  '''my bacic stupid idiotic dunder-headded ape-brained algorithim'''
  
  for i in range(len(lisp)):
    if lisp[i] == 1:
      lisp[i] = 'X'
    elif lisp[i] == 2:
      lisp[i] = 'O'
  
  def zeros(list):
    out = 0
    for i in range(len(list)):
      if list[i] == 0:
        out += 1
    return out
  
  def count(list, simb):
    out = 0
    for i in range(len(list)):
      if list[i] == simb:
        out += 1
    return out
  
  if count(lisp[0:3], 'X') == 2 and zeros(lisp[0:3]) == 1:
    lisp[0:3] = 'X','X','X'
  
  elif count(lisp[3:6], 'X') == 2 and zeros(lisp[3:6]) == 1:
    lisp[3:6] = 'X','X','X'
  
  elif count(lisp[6:9], 'X') == 2 and zeros(lisp[6:9]) == 1:
    lisp[6:9] = 'X','X','X'
    
  elif count([lisp[0],
              lisp[3],
              lisp[6]],'X') == 2 and zeros([lisp[0],lisp[3],lisp[6]]) == 1:
    for i in range(3):
      lisp[i*3] = 'X'
  
  elif count([lisp[1],
              lisp[4],
              lisp[7]],'X') == 2 and zeros([lisp[1],lisp[4],lisp[7]]) == 1:
    for i in range(3):
      lisp[(i*3)+1] = 'X'
  
  elif count([lisp[2],
              lisp[5],
              lisp[8]],'X') == 2 and zeros([lisp[2],lisp[5],lisp[8]]) == 1:
    for i in range(3):
      lisp[(i*3)+2] = 'X'
      
  elif count([lisp[0],
              lisp[4],
              lisp[8]],'X') == 2 and zeros([lisp[0],lisp[4],lisp[8]]) == 1:
    for i in range(3):
      lisp[(i*4)] = 'X'
  
  elif count([lisp[2],
              lisp[4],
              lisp[6]],'X') == 2 and zeros([lisp[2],lisp[4],lisp[6]]) == 1:
    
    lisp[2], lisp[4], lisp[6] = 'X','X','X'
  
  else:
    '''prevent loss'''
    if count(lisp[0:3], 'O') == 2 and zeros(lisp[0:3]) == 1:
      for i in range(3):
        if lisp[i] == 0:
          lisp[i] = 'X'
    
    elif count(lisp[3:6], 'O') == 2 and zeros(lisp[3:6]) == 1:
      for i in range(3,6):
        if lisp[i] == 0:
          lisp[i] = 'X'
    
    elif count(lisp[6:9], 'O') == 2 and zeros(lisp[6:9]) == 1:
      for i in range(6,9):
        if lisp[i] == 0:
          lisp[i] = 'X'
    
    elif count([lisp[0],
                lisp[3],
                lisp[6]],'O') == 2 and zeros([lisp[0],lisp[3],lisp[6]]) == 1:
      for i in range(3):
        if lisp[i*3] == 0:
          lisp[i*3] = 'X'
          
    elif count([lisp[1],
              lisp[4],
              lisp[7]],'X') == 2 and zeros([lisp[1],lisp[4],lisp[7]]) == 1:
      for i in range(3):
        if lisp[(i*3)+1] == 0:
          lisp[(i*3)+1] = 'X'
    
    elif count([lisp[2],
              lisp[5],
              lisp[8]],'X') == 2 and zeros([lisp[2],lisp[5],lisp[8]]) == 1:
      for i in range(3):
        if lisp[(i*3)+2] == 0:
          lisp[(i*3)+2] = 'X'
    
    elif count([lisp[0],
              lisp[4],
              lisp[8]],'X') == 2 and zeros([lisp[0],lisp[4],lisp[8]]) == 1:
      for i in range(3):
        if lisp[i*4] == 0:
          lisp[(i*4)] = 'X'
    
    elif count([lisp[2],
              lisp[4],
              lisp[6]],'X') == 2 and zeros([lisp[2],lisp[4],lisp[6]]) == 1:
      if lisp[2] == 0:
        lisp[2] = 'X'
        
      elif lisp[4] == 0:
        lisp[4] = 'X'
        
      elif lisp[6] == 0:
        lisp[6] = 'X'
    
    else:
      '''regular options'''
      if lisp[4] == 0:
        lisp[4] = 'X'
      else:
        while True:
          rand = random.randint(0,8)
          if lisp[rand] == 'X' or lisp[rand] == 'O':
            continue
          else:
            lisp[rand] = 'X'
            break
     
    
          
      
    
        
  return lisp