Contents

  1. ./card2.py
  2. ./card.py
  3. ./deck.py
  4. ./test.py

./card2.py 1/4

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# Card class and demonstration of use
# by CSCI111

import test

class Card:
    """
    A class to represent a standard playing card. The ranks are ints:
    2-10 for numbered cards, 11=Jack, 12=Queen, 13=King, 14=Ace.
    The suits are strings: 'clubs', 'spades', 'hearts', 'diamonds'.
    """
    
    def __init__(self, rank, suit):
        "Constructs a new Card object with the given rank (an int) and suit (a string)."
        self._rank = rank
        self._suit = suit
        
    def __str__(self):
        "Returns a string describing the card as 'rank of suit'."
        result = ""
        if self._rank == 11:
            result += "Jack"
        elif self._rank == 12:
            result += "Queen"
        elif self._rank == 13:
            result += "King"
        elif self._rank == 14:
            result += "Ace"
        else:
            result += str(self._rank)
        result += " of " + self._suit
        return result
        
    def getRank(self):
        "Returns rank."	
        return self._rank

    def getSuit(self):
        "Returns suit."
        return self._suit
        
    def getCardColor(self):
        """
        Returns the color of the card's suit.  
        This will be "red" for hearts and diamonds and
        "black" for spades and clubs
        """
        #if self.getSuit() == "hearts" or self.getSuit() == "diamonds":
            
        if self._suit == "hearts" or self._suit == "diamonds":
            color = "red"
        else:
            color = "black"
        return color
       
        
        
    def getRummyValue(self):
        """
        Returns the value of the card in a game 
        of Rummy.
        """
        # if it's an Ace, its value is 15
        if self._rank == 14:
            rummyValue = 15
        # if it's a 10 or face card, its value is 10
        elif self._rank <= 13 and self._rank >= 10:
            rummyValue = 10
        else:  # it's a number card
            rummyValue = 5
        return rummyValue
        

def main():
    c1 = Card(14, "spades")
    print(c1)
    print(c1.getRummyValue())
    c2 = Card(13, "hearts")
    print(c2)
    c3 = Card(2, "diamonds")
    print(c3)
    
    # could put the tests in separate functions
    # but want to test the same object in different ways
    
    # test the getSuit() method and constructor
    test.testEqual(c1.getSuit(), "spades")
    test.testEqual(c2.getSuit(), "hearts")
    test.testEqual(c3.getSuit(), "diamonds")

    # test the getRank() method and constructor
    test.testEqual(c1.getRank(), 14)
    test.testEqual(c2.getRank(), 13)
    test.testEqual(c3.getRank(), 2)
    
    # test the __str__ method
    test.testEqual( str(c1), "Ace of spades")
    test.testEqual( str(c2), "King of hearts")
    test.testEqual( str(c3), "2 of diamonds")
    
    
    
    # test the getCardColor method
    test.testEqual(c1.getCardColor(), "black")
    test.testEqual(c2.getCardColor(), "red")
    test.testEqual(c3.getCardColor(), "red")

    # test the getRummyValue method
    test.testEqual(c1.getRummyValue(), 15)
    test.testEqual(c2.getRummyValue(), 10)
    test.testEqual(c3.getRummyValue(), 5)

    myHand = [ c1, c2, c3 ]
    
    # Problem: determine the rummy value of this hand
    
    

    
    # showing other ways to call the str method 
    #myString = c3.__str__()
    #myString2 = str(c3)
    
    #print(myString)
    #print(myString2)
    
# Since I am probably going to import this class into another script,
# I only want to call main() when it's *not* imported
if __name__ == '__main__':
    main()

./card.py 2/4

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import test

class Card:
    """
    A class to represent a standard playing card. The ranks are ints:
    2-10 for numbered cards, 11=Jack, 12=Queen, 13=King, 14=Ace.
    The suits are strings: 'clubs', 'spades', 'hearts', 'diamonds'.
    """
    
    def __init__(self, rank, suit):
        "Constructs a new Card object with the given rank (an int) and suit (a string)."
        self._rank = rank
        self._suit = suit

    def __str__(self):
        "Returns a string describing the card as 'rank of suit'."
        result = ""
        if self._rank == 11:
            result += "Jack"
        elif self._rank == 12:
            result += "Queen"
        elif self._rank == 13:
            result += "King"
        elif self._rank == 14:
            result += "Ace"
        else:
            result += str(self._rank)
        result += " of " + self._suit
        return result
        
    def getRank(self):
        "Returns rank."	
        return self._rank

    def getSuit(self):
        "Returns suit."
        return self._suit
        
    def getRummyValue(self):
        "Returns the value of the card in the game of Rummy."
        # using the helper method may not be the best way
        # to implement this, but want to show what we can do.
        if self._isFaceCard(): # handles face cards
            return 10
        elif self._rank == 14: # handles Ace
            return 15
        elif self._rank == 10: # handles 10
            return 10
        else:
            return 5
            
    def __eq__(self, other):
        """Returns true if this object and other are equivalent
        based on their rank and suit"""
        
        # verify that self and other are the same type
        if type(self) != type(other):
            return False
        # do comparison
        return self._rank == other._rank and self._suit == other._suit
        
    def __lt__(self, other):
        """ Compares Card objects by their rank"""
        
        # verify that self and other are the same type
        if type(self) != type(other):
            return False
            
        # do comparison
        return self._rank < other._rank
        
    def _isFaceCard(self):
        "Returns True iff the card is a face card."
        if self._rank > 10 and self._rank < 14:
            return True
        return False

        
def main():
    c1 = Card(14, "spades")
    print(c1)
    c2 = Card(13, "hearts")
    print(c2)
    c3 = Card(2, "diamonds")
    print(c3)
    
    # test getRummyValue
    test.testEqual( c1.getRummyValue(), 15 )
    test.testEqual( c2.getRummyValue(), 10 )
    test.testEqual( c3.getRummyValue(), 5 )


    # test equals and less than
    test.testEqual( c1 == c2, False)
    test.testEqual( c1 < c2, False)
    test.testEqual( c2 < c1, True)
    
    print("\nTested cards in sorted order:")
    testCases.sort()
    for card in testCases:
        print(card)
    
# Since I am probably going to import this script into another script,
# I only want to call main() when it's *not* imported 
if __name__ == '__main__':
    main()

./deck.py 3/4

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# Implementation of a deck of cards.
# by CSCI 111

from card2 import *
from random import shuffle

class Deck:
    """ A class to represent a deck of playing cards."""
    
    def __init__(self):
        """Creates a new Deck object, filled with one of each
        unique card."""
        self._listOfCards = []
        for suit in ["clubs","hearts","diamonds","spades"]:
            for rank in range(2,15):
                myCard = Card(rank, suit)
                self._listOfCards.append(myCard)
        
                
        
    def __str__(self):
        """Returns a string representing the cards that are
        in the deck."""
        deckRep= ""
        for card in self._listOfCards:
            deckRep += str(card) + "\n"
        return deckRep
        

def main():
    d = Deck()
    print(d)
    
    
    
    
# Since I am probably going to import this script into another script,
# I only want to call main() when it's *not* imported
if __name__ == "__main__":
    main()

./test.py 4/4

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# From How to Think Like a Computer Scientist textbook

def testEqual(actual,expected,places=5):
    '''
    Does the actual value equal the expected value?
    For floats, places indicates how many places, right of the decimal, must be correct
    '''
    if isinstance(expected,float):
        if abs(actual-expected) < 10**(-places):
            print('\tPass')
            return True
    else:
        if actual == expected:
            print('\tPass')
            return True
    print('\tTest Failed: expected {} but got {}'.format(expected,actual))
    return False

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