app.py

# Creating the board
def create_board(values):
    print("\n")
    print("\t     |     |")
    print("\t  {}  |  {}  |  {}".format(values[0], values[1], values[2]))
    print('\t_____|_____|_____')

    print("\t     |     |")
    print("\t  {}  |  {}  |  {}".format(values[3], values[4], values[5]))
    print('\t_____|_____|_____')

    print("\t     |     |")

    print("\t  {}  |  {}  |  {}".format(values[6], values[7], values[8]))
    print("\t     |     |")
    print("\n")


# create scoreboard
def print_scoreboard(score_board):
    print("\t--------------------------------")
    print("\t              SCOREBOARD       ")
    print("\t--------------------------------")

    players = list(score_board.keys())
    print("\t   ", players[0], "\t    ", score_board[players[0]])
    print("\t   ", players[1], "\t    ", score_board[players[1]])

    print("\t--------------------------------\n")


# check for win
def check_win(player_pos, cur_player):

    # All possible winning combinations
    win_combinations = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [1, 4, 7],
                        [2, 5, 8], [3, 6, 9], [1, 5, 9], [3, 5, 7]]

    # Loop to check if we have any winning combination
    for x in win_combinations:
        if all(y in player_pos[cur_player] for y in x):

            # Return True if any winning combination satisfies
            return True
    # Return False if no combination is satisfied
    return False


# Function to check for draw
def check_draw(player_pos):
    if len(player_pos['X']) + len(player_pos['O']) == 9:
        return True
    return False


# Function for a single game
def single_game(cur_player):

    # Represents the Tic Tac Toe
    values = [' ' for x in range(9)]

    # Stores the positions occupied by X and O
    player_pos = {'X': [], 'O': []}

    # Game Loop for a single game of Tic Tac Toe
    while True:
        create_board(values)

        # Try exception block for MOVE input
        try:
            print("Player ", cur_player, " turn. Which box? : ", end="")
            move = int(input())
        except ValueError:
            print("Wrong Input!!! Try Again")
            continue

        # Sanity check for MOVE input
        if move < 1 or move > 9:
            print("Wrong Input!!! Try Again")
            continue

        # Check if the box is not occupied already
        if values[move-1] != ' ':
            print("Place already filled. Try again!!")
            continue

        # Update game information and grid status
        values[move-1] = cur_player

        # Updating player positions
        player_pos[cur_player].append(move)

        # Function call for checking win
        if check_win(player_pos, cur_player):
            create_board(values)
            print("Player ", cur_player, " has won the game!!")
            print("\n")
            return cur_player

        # Function call for checking draw game
        if check_draw(player_pos):
            create_board(values)
            print("Game Drawn")
            print("\n")
            return 'D'

        # Switch player moves
        if cur_player == 'X':
            cur_player = 'O'
        else:
            cur_player = 'X'


if __name__ == "__main__":

    print("Player 1")
    player1 = input("Enter your name : ")
    print("\n")

    print("Player 2")
    player2 = input("Enter your name : ")
    print("\n")

    # Store which player choose X and which player choose O
    cur_player = player1
    player_choice = {'X': "", 'O': ""}
    options = ['X', 'O']

    # Store the scoreboard
    score_board = {player1: 0, player2: 0}
    print_scoreboard(score_board)

    # Game Loop for one round of tic tac toe
    # The loop runs until the players quit
    while True:

        # player1 and player2 choosing between X and O
        print(cur_player, "choose between X and O")
        print("Enter 1 for X")
        print("Enter 2 for O")
        print("Enter 3 to Quit")

        # Try except for CHOICE input
        try:
            choice = int(input())
        except ValueError:
            print("Wrong Input!!! Try Again\n")
            continue

        # Conditions for player choice
        if choice == 1:
            player_choice['X'] = cur_player
            if cur_player == player1:
                player_choice['O'] = player2
            else:
                player_choice['O'] = player1

        elif choice == 2:
            player_choice['O'] = cur_player
            if cur_player == player1:
                player_choice['X'] = player2
            else:
                player_choice['X'] = player1

        elif choice == 3:
            print("Final Scores")
            print_scoreboard(score_board)
            break

        else:
            print("Wrong Choice!!!! Try Again\n")

        # Stores the winner
        winner = single_game(options[choice-1])

        # Edits the scoreboard according to the winner
        if winner != 'D':
            player_won = player_choice[winner]
            score_board[player_won] = score_board[player_won] + 1

        print_scoreboard(score_board)
        # Switch player who chooses X or O
        if cur_player == player1:
            cur_player = player2
        else:
            cur_player = player1