Rock, Paper, Scissors

# Exercise 1.7 – Rock, Paper, Scissors

# function to keep nagging to get a good choice
def get_player_choice(player_name):
    bad_choice = True
    good_choices = ["rock", "paper", "scissors"]

    while bad_choice:
        choice = raw_input(player_name + ": rock, paper or scissors? ")
        if choice in good_choices:
            bad_choice = False
            return choice
        else:
            print "This is not a valid object selection\n"
            bad_choice = True


# function to compare the choices
def check_outcome(choice1, choice2):
    print choice1, choice2
    if choice1 == choice2:
        return "Tie!"
    elif choice1 == 'rock':
        if choice2 == 'scissors':
            return "Player 1 wins"
        else:
            return "Player 2 wins"
    elif choice1 == 'paper':
        if choice2 == 'rock':
            return "Player 1 wins"
        else:
            return "Player 2 wins"
    elif choice1 == 'scissors':
        if choice2 == 'rock':
            return "Player 2 wins"
        else:
            return "Player 1 wins"
    else:
        return "I'm confused"

# main part of the program
play_again = True

while play_again:
    play_again = raw_input("\nReady to play? (y/n) ").lower()
    if play_again in ["y", "yes"]:
        play_again = True
        player1 = get_player_choice("Player1")
        player2 = get_player_choice("Player2")
        print check_outcome(player1, player2)
    else:
        play_again = False
        print "See you next time!"