Python Blackjack OOP - calling bust and blackjack class function keep reprinting card values

Question

I'm trying to use OOP to create a blackjack game and every time I call the blackjack or bust function, it reprints the the hand value of the player and dealer ever. I figure it has to do with the Hand class being initialized, but I'm not sure what the work around is there.

Code below for Hand Class + variables:

class Hand(object):

    def __init__(self):

        self.hand = []

    def add_card(self, card):

        self.hand.append(card)
        return self.hand

    def __str__(self):

        hand = [str(card) for card in self.hand]
        print 'Current hand is: ',hand

    def get_value(self):
        value = 0
        for card in self.hand:
            print(card)
            value += card.value
        for card in self.hand:
            if card.card == 'Ace' and value > 21:
                value -= 10
        return value

    def bust(self):
        if self.get_value() > 21:
            print ('Busted!')
        else:
            pass

    def hit_or_stand(self):

        self.hit = 'Hit'
        self.stand = 'Stand'
        self.prompter = raw_input('Would you like to hit or stand? ').lower()
        return self.prompter

    def show_hand(self):

        for card in self.hand:
            print(str(card))

    def show_dealerHand(self):

        print('Dealers Hand: '+ str(self.hand[0]) + ' ' + '[X]') 

    def blackjack(self):

        self.bj = False
        if self.get_value() == 21:
            self.bj = True
            print ('Blackjack!')
        else:
            pass

    def dealerHit(self):

        if self.get_value < 17:
            self.add_card(card)
        else:
            pass 

Here is the main function to run the game:

def runGame():
    player1 = Player()
    deck1 = Deck()
    playerHand = Hand()
    dealerHand = Hand()

    # deal out cards to player
    i = 0
    while i < 2:
        playerHand.add_card(deck1.drawCard())
        dealerHand.add_card(deck1.drawCard())
        i += 1
    playerHand.__str__()
    dealerHand.show_dealerHand()
    player_move = playerHand.hit_or_stand()
    if player_move == playerHand.hit.lower():
        playerHand.add_card(deck1.drawCard())
        while dealerHand.get_value() < 17:
            dealerHand.add_card(deck1.drawCard())
        if playerHand.bust():
            print('Dealer wins!')
        elif dealerHand.bust():
            print('Player wins!')
        if playerHand.blackjack() and dealerHand.blackjack():
            print('Both the Player and the Dealer have a blackjack!')
            player1.winnings += player1.amount
        elif playerHand.get_value() > dealerHand.get_value():
            print('Player wins')
            player1.winnings += player1.amount * 2
        elif playerHand.get_value() < dealerHand.get_value():
            print('Dealer wins')
            player1.winnings -= player1.amount

Answer 1

Notice that the bust function returns nothing:

def bust(self):
    if self.get_value() > 21:
        print ('Busted!')
    else:
        pass

However, in the main you "get" its return value:

if playerHand.bust():
    print('Dealer wins!')
elif dealerHand.bust():
    print('Player wins!')

In that case what you get is None. So what happens here is that playerHand.bust() returns None, which evaluates to False. Therefore, the elif dealerHand.bust() is also being executed, and that is why the dealer's hand is also being printed.

In order to fix this you'll have to return True or False, according to your needs.