Question

The class "Deck" is defined for the initial deck of 52 cards. A simple list is used to store 52 poker cards. Consider the Deck class given as below:

class Deck:     
def __init__(self, full=True):     
    self.cards = []      
    cardlist = ['AS', 'AH', 'AC', 'AD', '2S', '2H', '2C', '2D', '3S', '3H', '3C', '3D', '4S', 
                '4H', '4C', '4D', '5S', '5H', '5C', '5D',  '6S', '6H', '6C', '6D', '7S', '7H','7C', 
                '7D', '8S', '8H', '8C', '8D', '9S', '9H', '9C', '9D', 'TS', 'TH', 'TC', 'TD', 'JS', 
                'JH', 'JC', 'JD', 'QS', 'QH', 'QC', 'QD', 'KS', 'KH', 'KC', 'KD'] 
    for i in range(52):
        #complete this

Complete the constructor "__init__" of the Deck class to create a deck. By default, the deck should be full, and will contain all 52 cards. If the constructor is passed a False value, then the Deck should be created as an empty Deck that contains no cards.

Add a "size" method that returns the size of the deck.

Write the PokerCard class, and Deck class. Note that the deck should store a list of PokerCards.

Note - keep a copy of your solution to this task because you will be extending it step by step in subsequent tasks.

For example:

Test	Result
gamedeck = Deck() print(gamedeck.size()) print(gamedeck.cards.pop())	52 KD

gamedeck = Deck(False) print(gamedeck.size())

0

Extend the Deck class by implementing methods to add and remove cards. The cards will be added and removed to the top of the deck (i.e. the element at the *end* of the list).

• remove()
• add(card)

The remove() method will remove the card at the end of the deck and return that card. The returned value with be a PokerCard object.

The add(card) method will accept a PokerCard object as an argument and add that card to the top (the end) of the deck.

For example:

Test	Result
gamedeck = Deck() print(gamedeck.size()) print(gamedeck.remove()) print(gamedeck.size())	52 KD 51

gamedeck = Deck() print(gamedeck.size()) print(gamedeck.remove()) x = gamedeck.remove() gamedeck.add(x) print(gamedeck.remove()) print(gamedeck.size())

52 KD KC 50

Answer 1

class PokerCard:
    def __init__(self, notation):
        self.notation = notation

    # This is used to print notation (e.g KD, KC) instead of <__main__.PokerCard instance at address> type output
    def __str__(self):
        return self.notation


class Deck:
    def __init__(self, full=True):
        self.cards = []
        cardlist = ['AS', 'AH', 'AC', 'AD', '2S', '2H', '2C', '2D', '3S', '3H', '3C', '3D', '4S',
                    '4H', '4C', '4D', '5S', '5H', '5C', '5D', '6S', '6H', '6C', '6D', '7S', '7H', '7C',
                    '7D', '8S', '8H', '8C', '8D', '9S', '9H', '9C', '9D', 'TS', 'TH', 'TC', 'TD', 'JS',
                    'JH', 'JC', 'JD', 'QS', 'QH', 'QC', 'QD', 'KS', 'KH', 'KC', 'KD']

        for i in range(52):
            if full:
                self.cards.append(PokerCard(cardlist[i]))

    def size(self):
        return len(self.cards)

    # Will throw runtime error if card is not of type PokerCard instance
    def add(self, card):
        if isinstance(card, PokerCard):
            self.cards.append(card)
        else:
            raise RuntimeError("Input card is not a PokerCard instance !")

    def remove(self):
        return self.cards.pop()


if __name__ == "__main__":

    gamedeck = Deck()
    print(gamedeck.size())
    print(gamedeck.cards.pop())

    gamedeck = Deck(False)
    print(gamedeck.size())

    gamedeck = Deck()
    print(gamedeck.size())
    print(gamedeck.remove())
    print(gamedeck.size())

    gamedeck = Deck()
    print(gamedeck.size())
    print(gamedeck.remove())
    x = gamedeck.remove()
    gamedeck.add(x)
    print(gamedeck.remove())
    print(gamedeck.size())