Tic-tac-toe interface used with mini-max

play_tic_tac_toe.py

def play(game, bot):
    human = None
    while human is None:
        human = input("Select player: {} ".format(game.legal_players)).upper()
        if human not in game.legal_players:
            print("Invalid option")
            human = None
            
    comp = [alt_player for alt_player in game.legal_players if alt_player != human][0]
    turn = game.legal_players[0]
    while not game.gameover():    
        if comp == turn:
            move = bot.play(game, comp)
        else:
            print(game)
            move = None
            while move is None:
                move = input("Input move: ")
                if move.upper()[:1] == "Q":
                    print("Quitter...")
                    return
                elif move.upper()[:1] == "H":
                    print(game.__doc__)
                    continue
                if move.isdigit():
                    move = int(move)
        if move in game.get_moves():
            game.move(turn, move)
            turn = comp if turn == human else human
        else:
            print("Illegal move. Q to quit. H for help")
    print(game)
    if game.winner() == human:
        print("You won!")
    elif game.winner() == comp:
        print("You lost :-(")
    else:
        print("It's a draw")