tictactoe.py

board = ["   " for i in range(9)]

def print_board():
    row1 ="|{}|{}|{}|".format(board[0], board[1], board[2])
    row2 ="|{}|{}|{}|".format(board[3], board[4], board[5])
    row3 ="|{}|{}|{}|".format(board[6], board[7], board[8])

    print()
    print(row1)
    print(row2)
    print(row3)
    print()

def player_move(icon):
    if icon == " X ":
        number = "1"
    elif icon == " O ":
        number = "2"
        
    print("Your turn player " + number)
    choice = int(input("Enter Move: ").strip())

    if board[choice-1] == '   ':
        board[choice-1] = icon
    else:
        print()
        print("That space is taken!")
        player_move(icon)

def isVictory(icon):
    if(board[0] == icon and board[1] == icon and board[2] == icon) or \
        (board[3] == icon and board[4] == icon and board[5] == icon) or \
        (board[6] == icon and board[7] == icon and board[8] == icon) or \
        (board[0] == icon and board[3] == icon and board[6] == icon) or \
        (board[1] == icon and board[4] == icon and board[7] == icon) or \
        (board[2] == icon and board[5] == icon and board[8] == icon) or \
        (board[0] == icon and board[4] == icon and board[8] == icon) or \
        (board[2] == icon and board[4] == icon and board[6] == icon):
        return True
    else:
        return False

def isDraw():
    if "   " not in board:
        return True
    else:
        return False
        
while True:
    print_board()
    player_move(" X ")
    print_board()
    if isVictory(" X "):
        print("X Wins!")
        break
    elif isDraw():
        print("It's a draw!")
        break
    player_move(" O ")
    
    if isVictory(" O "):
        print_board()
        print("O Wins!")
        break
    elif isDraw():
        print("It's a draw!")
        break