Rock, paper, scissors!

rock-paper-scissors.py

from random import randint

CHOICES = ['rock', 'paper', 'scissors']
INITIALS = [c[0] for c in CHOICES]

class Player(object):
    def __init__(self, name):
        self.name = name

    def get_name(self):
        return self.name

class HumanPlayer(Player):
    def __init__(self, name):
        super(HumanPlayer, self).__init__(name)

    def get_choice(self):
        s = input("Whats your choice, rock, paper or scissors? ").lower()[0]
        while s not in INITIALS:
            s = input("This choice does not exist! Pick another: ").lower()[0]
        return INITIALS.index(s)

class ComputerPlayer(Player):
    def __init__(self, name):
        super(ComputerPlayer, self).__init__(name)

    def get_choice(Player):
        return randint(0, len(CHOICES) - 1)

def game(p1, p2):
    print("Welcome %s and %s!" % (p1.get_name(), p2.get_name()))
    while True:
        c1 = p1.get_choice()
        c2 = p2.get_choice()
        print("%s chose %s and %s chose %s" % (p1.get_name(), CHOICES[c1], p2.get_name(), CHOICES[c2]))
        cond = (c1 - c2) % 3
        if cond == 0:
            print("Its a tie!")
        elif cond == 1:
            print("%s won!" % (p1.get_name(),))
        else:
            print("%s won!" % (p2.get_name(),))
        print("-------")

try:
    game(HumanPlayer("Ian"), ComputerPlayer("[CPU]"))
except KeyboardInterrupt:
    print("Bye")