objectoriented

import random, sys

class Player:#two methods in comun between user player and computer player
    score = 0

    def update_score(self):
        self.score += 1

    def get_score(self):
        return self.score



class Computerp(Player): # The computer player class, it has in addition to the two Player method, it's own choose method.

    def choose(self):
        computer_choice = random.choice("rps")
        return computer_choice


class Userp(Player): # Same as computer player class

    def choose(self):
        user_ch = raw_input(" Your Choice ?   ")
        if user_ch != "r" and user_ch != "p" and user_ch != "s":
            print " Wrong input, Please try again.\n"
            user_ch = self.choose()

        return user_ch

class Game: # This is a wrapper class for the "Game logic", it has: compare_choices method, play, and play_again methods.

    def compare_choices(self, computer_choice, user_choice):
        if user_choice == "r" and computer_choice == "p":
            return "computer"
        elif user_choice == "r" and computer_choice == "s":
            return "user"
        elif user_choice == "r" and computer_choice == "r":
            return "n" # n means nul
        elif user_choice == "p" and computer_choice == "r":
            return "user"
        elif user_choice == "p" and computer_choice == "s":
            return "computer"
        elif user_choice == "p" and computer_choice == "p":
            return "n"
        elif user_choice == "s" and computer_choice == "r":
            return "computer"
        elif user_choice == "s" and computer_choice == "p":
            return "user"
        elif user_choice == "s" and computer_choice == "s":
            return "n"

    def play(self):
        user = Userp()
        computer = Computerp()
        i = 1
        while i <= 3:
            user_ch = user.choose()
            computer_ch = computer.choose()
            result = self.compare_choices(computer_ch, user_ch)
            if result == 'user':
                user.update_score()
                print " Your choice was " + user_ch + ", the computer's choice was "+ computer_ch
                print " You WON ! \n"
            elif result == 'computer':
                computer.update_score()
                print " Your choice was " + user_ch + ", the computer's choice was "+ computer_ch
                print " The computer won. \n"
            else:
                print " Your choice was " + str(user_ch) + ", the computer's choice was "+ str(computer_ch)
                self.play_again()
            i = i + 1
        print "Your score was: "+str(user.get_score())+", The Computer's score was: "+str(computer.get_score())
        if user.get_score() > computer.get_score():
            print "You are the WINNER, CONGRATULATIONS! \n\n"
        else:
            print "The Computer is the WINNER. \n\n"
        self.play_again()


    def play_again(self):
        print "Game Over"
        choice = raw_input(" Would you like to play again? (Y/N) ")
        if choice == "y" or choice == "Y":
            self.play()
        elif choice == "n" or choice == "N":
            sys.exit()
        else:
            print " Wrong input, Please try again.\n"
            self.play_again()


######################################################################

print """
          +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
          +                          WECLOME TO ROCK, PAPER, SISSORS GAME.                         +
          +                                                                                                                                          +
          + To test you luck, please choose "r" for Rock, "s" Sissors and "p" for paper.+
          +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
         """

game = Game()

game.play()