rps.py

# from http://www.practicepython.org/exercise/2014/03/26/08-rock-paper-scissors.html

def rps():
    playagain = "yes"
    print "It's Rock, Paper, Scissors time!"
    
    while playagain == "yes":
        player1 = raw_input("Player 1 - What do you choose? ")
        player2 = raw_input("Player 2 - What do you choose? ")
        
    
        if player1 == "rock" and player2 == "rock":
            print "Tie."
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "rock" and player2 == "paper":
            print "Player 2 wins!"
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "rock" and player2 == "scissors":
            print "Player 1 wins!"
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "paper" and player2 == "rock":
            print "Player 1 wins!"
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "paper" and player2 == "paper":
            print "Tie."
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "paper" and player2 == "scissors":
            print "Player 2 wins!"
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "scissors" and player2 == "rock":
            print "Player 2 wins!"
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "scissors" and player2 == "scissors":
            print "Tie."
            playagain = raw_input("Do you want to play again? ")
        elif player1 == "scissors" and player2 == "paper":
            print "Player 1 wins!"
            playagain = raw_input("Do you want to play again? ")
        else:
            print "Please put your reponse in lower case and try again."
        
rps()