tic-tac-toe.py

theBoard = {'7': ' ', '8': ' ', '9': ' ',
            '4': ' ', '5': ' ', '6': ' ',
            '1': ' ', '2': ' ', '3': ' '}

board_keys = []

for key in theBoard:
        board_keys.append(key)

''' We will have to print the updated board after every move in the game and 
    thus we will make a function in which we'll define the printBoard function
    so that we can easily print the board everytime by calling this function. '''


def printBoard(board):
        print(board['7'] + '|' + board['8'] + '|' + board['9'])
        print('-+-+-')
        print(board['4'] + '|' + board['5'] + '|' + board['6'])
        print('-+-+-')
        print(board['1'] + '|' + board['2'] + '|' + board['3'])



def game():
        turn = 'X'
        count = 0

        for i in range(10):
                printBoard(theBoard)
                print("It's your turn," + turn + ".Move to which place?")

                move = input()

                if theBoard[move] == ' ':
                        theBoard[move] = turn
                        count += 1

                else:
                        print("That place is already filled.\nMove to which place?")
                        continue

               
                if count >= 5:
                        if theBoard['7'] == theBoard['8'] == theBoard['9'] != ' ':  # across the top
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['4'] == theBoard['5'] == theBoard['6'] != ' ':  # across the middle
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['1'] == theBoard['2'] == theBoard['3'] != ' ':  # across the bottom
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['1'] == theBoard['4'] == theBoard['7'] != ' ':  # down the left side
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['2'] == theBoard['5'] == theBoard['8'] != ' ':  # down the middle
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['3'] == theBoard['6'] == theBoard['9'] != ' ':  # down the right side
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['7'] == theBoard['5'] == theBoard['3'] != ' ':  # diagonal
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break
                        elif theBoard['1'] == theBoard['5'] == theBoard['9'] != ' ':  # diagonal
                                printBoard(theBoard)
                                print("\nGame Over.\n")
                                print(" **** " + turn + " won. ****")
                                break

                                # If neither X nor O wins and the board is full, we'll declare the result as 'tie'.
                if count == 9:
                        print("\nGame Over.\n")
                        print("It's a Tie!!")

                # Now we have to change the player after every move.
                if turn == 'X':
                        turn = 'O'
                else:
                        turn = 'X'

                        # Now we will ask if player wants to restart the game or not.
        restart = input("Do want to play Again?(y/n)")
        if restart == "y" or restart == "Y":
                for key in board_keys:
                        theBoard[key] = " "

                game()


if __name__ == "__main__":
        game()