complete game.txt

print("Welcome To Tic TAC TOE")
print("Type 'start' to start the game")
print("Type 'quit' to quit the game")

command=""
while command.lower()!="quit":
    command=input('> ')
    if command.lower()=="start" or command.lower()=="restart":
        print("Type S for Single Player ")
        print("Type M for Multi Player ")
        command=input('> ')
        if command.lower()=="m":
            list=["0","1","2","3","4","5","6","7","8"]
            winner=None
            toss=None
            def board():
                print(f' {list[0]} | {list[1]}  | {list[2]}   ')
                print(f'---|----|---')
                print(f' {list[3]} | {list[4]}  | {list[5]}    ')
                print(f'---|----|---')
                print(f' {list[6]} | {list[7]}  | {list[8]}    ')
            def horizontal():
                global winner
                if list[0] == list[1] == list[2]:
                    winner = list[0]
                    return True
                elif list[3] == list[4] == list[5]:
                    winner = list[3]
                    return True
                elif list[6] == list[7] == list[8]:
                    winner = list[6]
                    return True


            def verticalwin():
                global winner
                if list[0] == list[3] == list[6]:
                    winner = list[0]
                    return True
                elif list[1] == list[4] == list[7]:
                    winner = list[1]
                    return True
                elif list[2] == list[5] == list[8]:
                    winner = list[2]
                    return True

            def diagonalwin():
                global winner
                if list[0] == list[4] == list[8]:
                    winner = list[0]
                    return True
                elif list[2] == list[4] == list[6]:
                    winner = list[2]
                    return True
            def tie():
                if list[0]!="0" and list[1]!="1" and list[2]!="2" and list[3]!="3" and list[4]!="4" and list[5]!="5" and list[6]!="6" and list[7]!="7" and  list[8]!="8":
                    return True



            print("Multiplayer Tic tac toe")
            xplayer=str(input("Enter Name for Player1 " )).upper()
            while True:
                symbol1 = input(f"{xplayer} please enter your Symbol ").upper()
                if symbol1 == "O" or symbol1 == "X":
                    break
                else:
                    print("Please enter 'X' or 'O'")
            print(xplayer, 'Your Symbol is', symbol1)
            yplayer=str(input("Enter Name for Player2 " )).upper()
            if symbol1 == "X":
                symbol2 = "O"
            else:
                symbol2 = "X"
            print(yplayer, 'Your Symbol is', symbol2)

            import random
            toss1=random.randint(0,1)




            while(True):

                toss=input(xplayer+" 'HEADS' or 'TAIL' Enter 1 for head 0 for tail ")

                if toss.isdigit():
                    toss = int(toss)
                    if (toss == 1 or toss == 0):
                        if toss1 == toss:
                            print(xplayer + " You won the toss,Your turn")
                            turn = 1
                        else:
                            print(xplayer + " You lose the toss, " + yplayer + " turn")
                            turn = 0
                        break
                    else:
                        print("> Please Enter Valid input <")
                else:
                    print("> Please Enter Valid input <")


            board()
            while (True):

                if turn==1:

                    xinput = input(xplayer + " Enter the position for , " + symbol1 + " ")
                    while xinput not in ["0","1","2","3","4","5","6","7","8"]:
                        print("Invalid input enter between(0-8)")
                        xinput = input(xplayer + " Enter the position for , " + symbol1 + " ")
                    xinput=int(xinput)



                    while list[xinput]==symbol1 or list[xinput]==symbol2:
                        print("Invalid input already occupied")
                        xinput=input(xplayer + " Enter the position for ,"+symbol1+" " )
                        while xinput not in ["0", "1", "2", "3", "4", "5", "6", "7", "8"]:
                            print("Invalid input")
                            xinput = input(xplayer + " Enter the position for ," + symbol1 + " ")
                        xinput=int(xinput)

                    list[xinput]=symbol1
                    board()
                    if horizontal():
                        if winner==symbol1:
                            print(xplayer+ " is winner")
                        elif winner==symbol2:
                            print(yplayer+ " is winner")
                        break

                    if verticalwin():
                        if winner == symbol1:
                            print(xplayer+ " is winner")
                        elif winner == symbol2:
                            print(yplayer+ " is winner")
                        break
                    if diagonalwin():
                        if winner == symbol1:
                            print(xplayer+ " is winner")
                        elif winner == symbol2:
                            print(yplayer+ " is winner")
                        break
                    if tie():
                        print("Its a tie")
                        break

                    turn=turn-1


                if turn==0:
                    yinput = input(yplayer + " Enter the position for , " + symbol2 + " ")
                    while yinput not in ["0","1","2","3","4","5","6","7","8"]:
                        print("Invalid input enter between(0-8)")
                        yinput = input(yplayer + " Enter the position for , " + symbol2 + " ")

                    yinput=int(yinput)

                    while list[yinput]==symbol1 or list[yinput]==symbol2:
                        print("Invalid input already occupied")
                        yinput=input(yplayer + " Enter the position for , "+symbol2+" " )
                        while yinput not in ["0", "1", "2", "3", "4", "5", "6", "7", "8"]:
                            print("Invalid input ")
                            yinput = input(yplayer + " Enter the position for , " + symbol2 + " ")
                        yinput=int(yinput)
                    list[yinput]=symbol2
                    board()
                    if horizontal():
                        if winner==symbol1:
                            print(xplayer+ " is winner")
                        elif winner==symbol2:
                            print(yplayer+ " is winner")
                        break

                    if verticalwin():
                        if winner == symbol1:
                            print(xplayer+ " is winner")
                        elif winner == symbol2:
                            print(yplayer+ " is winner")
                        break
                    if diagonalwin():
                        if winner == symbol1:
                            print(xplayer+ " is winner")
                        elif winner == symbol2:
                            print(yplayer+ " is winner")
                        break
                    if tie():
                        print("Its a tie")
                        break
                    turn=1
            print("Type 'restart' to restart")
            print("or type 'quit' to Quit")
        if command.lower()=="s":

            list = ["0", "1", "2", "3", "4", "5", "6", "7", "8"]
            winner = None
            toss = None
            xinput = None


            def board():
                print(f' {list[0]} | {list[1]}  | {list[2]}   ')
                print(f'---|----|---')
                print(f' {list[3]} | {list[4]}  | {list[5]}    ')
                print(f'---|----|---')
                print(f' {list[6]} | {list[7]}  | {list[8]}    ')


            def horizontal():
                global winner
                if list[0] == list[1] == list[2]:
                    winner = list[0]
                    return True
                elif list[3] == list[4] == list[5]:
                    winner = list[3]
                    return True
                elif list[6] == list[7] == list[8]:
                    winner = list[6]
                    return True


            def verticalwin():
                global winner
                if list[0] == list[3] == list[6]:
                    winner = list[0]
                    return True
                elif list[1] == list[4] == list[7]:
                    winner = list[1]
                    return True
                elif list[2] == list[5] == list[8]:
                    winner = list[2]
                    return True


            def diagonalwin():
                global winner
                if list[0] == list[4] == list[8]:
                    winner = list[0]
                    return True
                elif list[2] == list[4] == list[6]:
                    winner = list[2]
                    return True


            def tie():
                if list[0] != "0" and list[1] != "1" and list[2] != "2" and list[3] != "3" and list[4] != "4" and list[5] != "5" and list[6] != "6" and list[7] != "7" and list[8] != "8":
                    return True


            def comp_draw():

                if xinput == 4:
                    if list[0] == "0":
                        list[0] = comp
                    elif list[1] == "1":
                        list[1] = comp
                    elif list[2] == "2":
                        list[2] = comp
                    elif list[3] == "3":
                        list[3] = comp
                    elif list[5] == "5":
                        list[5] = comp
                    elif list[6] == "6":
                        list[6] = comp
                    elif list[7] == "7":
                        list[7] = comp
                    elif list[8] == "8":
                        list[8] = comp

                elif xinput != 4 and list[4] != symbol1 and list[4] != comp:
                    list[4] = comp
                # Row 1
                elif list[0] == symbol1 and list[1] == symbol1 and list[2] == "2":
                    list[2] = comp
                elif list[0] == symbol1 and list[2] == symbol1 and list[1] == "1":
                    list[1] = comp
                elif list[2] == symbol1 and list[1] == symbol1 and list[0] == "0":
                    list[0] = comp
                # Row 2
                elif list[3] == symbol1 and list[4] == symbol1 and list[5] == "5":
                    list[5] = comp
                elif list[3] == symbol1 and list[5] == symbol1 and list[4] == "4":
                    list[4] = comp
                elif list[5] == symbol1 and list[4] == symbol1 and list[3] == "3":
                    list[3] = comp
                # row 3
                elif list[6] == symbol1 and list[7] == symbol1 and list[8] == "8":
                    list[8] = comp
                elif list[6] == symbol1 and list[8] == symbol1 and list[7] == "7":
                    list[7] = comp
                elif list[8] == symbol1 and list[7] == symbol1 and list[6] == "6":
                    list[6] = comp
                # Column 1
                elif list[0] == symbol1 and list[3] == symbol1 and list[6] == "6":
                    list[6] = comp
                elif list[0] == symbol1 and list[6] == symbol1 and list[3] == "3":
                    list[3] = comp
                elif list[6] == symbol1 and list[3] == symbol1 and list[0] == "0":
                    list[0] = comp
                # Column 2
                elif list[1] == symbol1 and list[4] == symbol1 and list[7] == "7":
                    list[7] = comp
                elif list[1] == symbol1 and list[7] == symbol1 and list[4] == "4":
                    list[4] = comp
                elif list[7] == symbol1 and list[4] == symbol1 and list[1] == "1":
                    list[1] = comp
                # Column 3
                elif list[2] == symbol1 and list[5] == symbol1 and list[8] == "8":
                    list[8] = comp
                elif list[2] == symbol1 and list[8] == symbol1 and list[5] == "5":
                    list[5] = comp
                elif list[8] == symbol1 and list[5] == symbol1 and list[2] == "2":
                    list[2] = comp
                # Daigonal 1
                elif list[0] == symbol1 and list[4] == symbol1 and list[8] == "8":
                    list[8] = comp
                elif list[0] == symbol1 and list[8] == symbol1 and list[4] == "4":
                    list[4] = comp
                elif list[8] == symbol1 and list[4] == symbol1 and list[0] == "0":
                    list[0] = comp
                # Daigonal 2
                elif list[2] == symbol1 and list[4] == symbol1 and list[6] == "6":
                    list[6] = comp
                elif list[2] == symbol1 and list[6] == symbol1 and list[4] == "4":
                    list[4] = comp
                elif list[6] == symbol1 and list[4] == symbol1 and list[2] == "2":
                    list[2] = comp
                else:
                    if list[6] == "6":
                        list[6] = comp
                    elif list[1] == "1":
                        list[1] = comp
                    elif list[2] == "2":
                        list[2] = comp
                    elif list[3] == "3":
                        list[3] = comp
                    elif list[5] == "5":
                        list[5] = comp
                    elif list[7] == "7":
                        list[7] = comp
                    elif list[0] == "0":
                        list[0] = comp
                    elif list[8] == "8":
                        list[8] = comp


            def comp_win():

                # Row 1
                if list[0] == comp and list[1] == comp and list[2] == "2":
                    list[2] = comp
                elif list[0] == comp and list[2] == comp and list[1] == "1":
                    list[1] = comp
                elif list[2] == comp and list[1] == comp and list[0] == "0":
                    list[0] = comp
                # Row 2
                elif list[3] == comp and list[4] == comp and list[5] == "5":
                    list[5] = comp
                elif list[3] == comp and list[5] == comp and list[4] == "4":
                    list[4] = comp
                elif list[5] == comp and list[4] == comp and list[3] == "3":
                    list[3] = comp
                # row 3
                elif list[6] == comp and list[7] == comp and list[8] == "8":
                    list[8] = comp
                elif list[6] == comp and list[8] == comp and list[7] == "7":
                    list[7] = comp
                elif list[8] == comp and list[7] == comp and list[6] == "6":
                    list[6] = comp
                # Column 1
                elif list[0] == comp and list[3] == comp and list[6] == "6":
                    list[6] = comp
                elif list[0] == comp and list[6] == comp and list[3] == "3":
                    list[3] = comp
                elif list[6] == comp and list[3] == comp and list[0] == "0":
                    list[0] = comp
                # Column 2
                elif list[1] == comp and list[4] == comp and list[7] == "7":
                    list[7] = comp
                elif list[1] == comp and list[7] == comp and list[4] == "4":
                    list[4] = comp
                elif list[7] == comp and list[4] == comp and list[1] == "1":
                    list[1] = comp
                # Column 3
                elif list[2] == comp and list[5] == comp and list[8] == "8":
                    list[8] = comp
                elif list[2] == comp and list[8] == comp and list[5] == "5":
                    list[5] = comp
                elif list[8] == comp and list[5] == comp and list[2] == "2":
                    list[2] = comp
                # Daigonal 1
                elif list[0] == comp and list[4] == comp and list[8] == "8":
                    list[8] = comp
                elif list[0] == comp and list[8] == comp and list[4] == "4":
                    list[4] = comp
                elif list[8] == comp and list[4] == comp and list[0] == "0":
                    list[0] = comp
                # Daigonal 2
                elif list[2] == comp and list[4] == comp and list[6] == "6":
                    list[6] = comp
                elif list[2] == comp and list[6] == comp and list[4] == "4":
                    list[4] = comp
                elif list[6] == comp and list[4] == comp and list[2] == "2":
                    list[2] = comp


            def tie():
                if list[0] != "0" and list[1] != "1" and list[2] != "2" and list[3] != "3" and list[4] != "4" and list[5] != "5" and list[6] != "6" and list[7] != "7" and list[8] != "8":
                    return True


            print("Single player Tic tac toe")
            xplayer = str(input("Enter Name for Player1 ")).upper()
            while True:
                symbol1 = input(f"{xplayer} please enter your Symbol ").upper()
                if symbol1 == "O" or symbol1 == "X":
                    break
                else:
                    print("Please enter 'X' or 'O'")
            print(xplayer, 'Your Symbol is', symbol1)
            if symbol1 == "X":
                symbol2 = "O"
            else:
                symbol2 = "X"
            comp = symbol2
            print("computer symbol is " + symbol2)

            import random

            toss1 = random.randint(0, 1)

            while (True):

                toss = input(xplayer + " 'HEADS' or 'TAIL' Enter 1 for head 0 for tail ")

                if toss.isdigit():
                    toss = int(toss)
                    if (toss == 1 or toss == 0):
                        if toss1 == toss:
                            print(xplayer + " You won the toss,Your turn")
                            turn = 1
                        else:
                            print(xplayer + " You lose the toss,computers turn")
                            turn = 0
                        break
                    else:
                        print("> Please Enter Valid input <")
                else:
                    print("> Please Enter Valid input <")

            board()
            while (True):

                if turn == 1:

                    xinput = input(xplayer + " Enter the position for , " + symbol1 + " ")
                    while xinput not in ["0", "1", "2", "3", "4", "5", "6", "7", "8"]:
                        print("Invalid input enter between(0-8)")
                        xinput = input(xplayer + " Enter the position for , " + symbol1 + " ")
                    xinput = int(xinput)

                    while list[xinput] == symbol1 or list[xinput] == symbol2:

                        while xinput not in ["0", "1", "2", "3", "4", "5", "6", "7", "8"]:
                            print("Invalid input")
                            xinput = input(xplayer + " Enter the position for , " + symbol1 + " ")

                        xinput = int(xinput)
                    list[xinput] = symbol1
                    board()
                    if horizontal():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("computer is winner")
                        break

                    if verticalwin():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("Computer is winner")
                        break
                    if diagonalwin():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("Computer is winner")
                        break
                    if tie():
                        print("Its a tie")
                        break

                    turn = turn - 1

                if turn == 0:
                    print("computers turn,computers symbol is  " + symbol2)

                    comp_win()



                    if horizontal():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("Computer is winner")
                        break

                    if verticalwin():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("Computer is winner")
                        break
                    if diagonalwin():
                        if winner == symbol1:
                            print(xplayer + " is winner")
                        elif winner == symbol2:
                            print("Computer is winner")
                        break
                    if tie():
                        print("Its a tie")
                        break

                    comp_draw()
                    board()
                    turn = 1


            print("Type 'restart' to restart")
            print("or type 'quit' to Quit")
    elif command.lower()=="quit":
        print("Thanks ")
        break
    else:
        print("I DONT UNDERSTAND......")