Python. Modify the Deck class to keep track of the current size of the deck using an instance variable.

from random import randrange from Card import Card class Deck(object):

#------------------------------------------------------------

def __init__(self):

"""post: Creates a 52 card deck in standard order"""

cards = [] self.size = 0 for suit in Card.SUITS: for rank in Card.RANKS: cards.append(Card(rank,suit)) self.cards = cards

#------------------------------------------------------------

def size(self):

"""Cards left post: Returns the number of cards in self"""

return len(self.cards)

#------------------------------------------------------------

def deal(self):

"""Deal a single card pre: self.size() > 0 post: Returns the next card, and removes it from self.card if the deck is not empty, otherwise returns False"""

if self.size() > 0: return self.cards.pop() else: return False

#------------------------------------------------------------

def shuffle(self):

"""Shuffles the deck post: randomizes the order of cards in self"""

n = self.size() cards = self.cards for i,card in enumerate(cards): pos = randrange(i,n) cards[i] = cards[pos] cards[pos] = card

#------------------------------------------------------------

def addTop(self, card): self.cards = self.cards + [card] # add [card] to the top position

#------------------------------------------------------------

def addBottom(self, card): self.cards = [card] + self.cards # add [card] to the bottom position

#------------------------------------------------------------ def addRandom(self, card): pos = randrange(range(len(self.cards))) # randomizes range of len(self.cards) self.cards = self.cards[1: pos] + [card] + self.cards[pos:] # Adding card at a random position

from random import randrange from Card import Card class Deck (object) def -init-(self): " " "post: Creates a 52 card deck in standard order""" cards - [] self. size for suit in Card.SUITS: for rank in Card. RANKS cards.append (Card (rank, suit)) self.cardscards def size (self): ""Cards left post: Returns the number of cards in self""" return len (self.cards) def deal (self) " "Deal a single card pre: self.size) o post: Returns the next card, and removes it from self.card if the deck is not empty, otherwise returns False""" if self.size) >0: return self.cards.pop () else: return False def shuffle (self): """Shuffles the deck post: randomizes the order of cards in self""" n - self.size) cards-self.cards for i,card in enumerate (cards) posrandrange (i,n) cards [i] cards [pos] cards Ipos]card def addTop (self, card) self.cards-self.cards + [card] # add [card] to the top position def addBottom (self, card) self.cards- [card] + self.cards # add [card] to the bottom position def addRandom (self, card) pos = randrange (range (len(self.cards))) # randomizes range of len(self. cards) self.cards self. cards [1: pos] + [card] + self.cards [pos:] # Adding card at a random position