helping_with_rps

"""Helping someone on Reddit debug their program. THIS IS NOT MY WORK!
"""

#!/usr/bin/env python3

import random


class RockPaperScissors():

    def __init__(self):
        self.FORMS = ("R", "P", "S")
        self.play_again = True

    def choose_form(self):
        print("Enter 'R', 'P', or 'S'\nfor rock, paper, or scissors.")
        hand = input().upper()
        print("The value of hand at line 14 is {}.".format(hand))
        return hand

    def decide(self, hands):
        for x in hands.keys():
            print("The value of x at line 19 is {}".format(x))
            for y in hands.keys():
                print("The value of y at line 21 is {}".format(y))
                if ((hands[x] == "R" and hands[y] == "S") or
                        (hands[x] == "P" and hands[y] == "R") or
                        (hands[x] == "S" and hands[y] == "P")):
                    winner = x
                else:
                    winner = None
        print("The value of winner at line 29 is {}".format(winner))
        return winner

    def play(self):
        hands = {}

        while self.play_again:

            print("=== Rock, Paper, Scissors ===\n")

            hands["Player"] = self.choose_form()
            hands["Computer"] = random.choice(self.FORMS)

            print("\nYou chose {}, the computer chose {}.".format(
                hands["Player"], hands["Computer"]
            ))

            winner = self.decide(hands)
            # this variable seems to be None every time

            if winner:
                print("The winner is:", winner)
            else:
                print("It's a tie!")
                self.play_again = True

            answer = input("Play again? (Y/N) ").upper()
            if answer == "Y":
                self.play_again = True
            else:
                self.play_again = False

        print("Thanks for playing!")


def main():
    rps_game = RockPaperScissors()
    rps_game.play()

if __name__ == "__main__":
    main()