progress on freecell game

import random
import numpy

class Table(object):
    """The table where FreeCell is played. Consists of 8 CardStacks,
       4 FreeCells and 4 BuildLists. Initialized with a deck of 52 cards."""
    def __init__(self, deck):
        self.deck = deck
        self.stack1 = CardStack()
        self.stack2 = CardStack()
        self.stack3 = CardStack()
        self.stack4 = CardStack()
        self.stack5 = CardStack()
        self.stack6 = CardStack()
        self.stack7 = CardStack()
        self.stack8 = CardStack()
        self.cell1 = FreeCell()
        self.cell2 = FreeCell()
        self.cell3 = FreeCell()
        self.cell4 = FreeCell()
        self.build1 = BuildList()
        self.build2 = BuildList()
        self.build3 = BuildList()
        self.build4 = BuildList()
    def dealCards(self):
        self.stack1.populate(DECK[:7])
        self.stack2.populate(DECK[7:14])
        self.stack3.populate(DECK[14:21])
        self.stack4.populate(DECK[21:28])
        self.stack5.populate(DECK[28:34])
        self.stack6.populate(DECK[34:40])
        self.stack7.populate(DECK[40:46])
        self.stack8.populate(DECK[46:])
    def isGameComplete(self):
        return self.build1.isFull() and self.build2.isFull() and self.build3.isFull() and self.build4.isFull()
    def moveCard(self,source,dest):
        card = source.getTopCard()
        if dest.allowAdd(card):
            source.takeCard()
            dest.addCard(card)
        print self
        if self.isGameComplete():
            print "Game complete! Yay!"
    def __str__(self):
        #stringToReturn = "FreeCells" + cell1.
        return stringToReturn




class CardStack(object):
    """An ordered list of cards. Card at the end of the list is available."""
    def __init__(self):
        self.cardList = []
    def populate(self, cardsToAdd):
        self.cardList = cardsToAdd
        print "Added %d cards to list." % len(cardsToAdd)
    def isEmpty(self):
        return len(self.cardList) == 0
    def showCardList(self):
        for card in self.cardList:
            print card
    def getTopCard(self):
        return self.cardList[-1]
    def allowAdd(self, cardToAdd):
        topCard = self.getTopCard()
        return cardToAdd.getColor() != topCard.getColor() and topCard.getNumber() - 1 == cardToAdd.getNumber()
    def addCard(self,card):
        self.cardList.append(card)
    def addCards(self, listOfCards):
        for card in listOfCards:
            self.cardList.append(card)
    def takeCard(self):
        self.pop()
    def takeCards(self, numCards):
        cardsToTransfer = []
        for n in range(numCards):
            cardsToTransfer.append(self.cardList.pop())
        return cardsToTransfer
    def __str__(self):
        if self.cardList == []:
            stringToReturn = "No cards."
        else:
            stringToReturn = ""
            for card in self.cardList:
                stringToReturn += card.__str__() + "\n"
        return stringToReturn

class FreeCell(CardStack):
    """Can contain 1 or 0 cards."""
    def __init__(self):
        CardStack.__init__(self)
    def allowAdd(self):
        return self.isEmpty()

class BuildList(CardStack):
    def __init__(self):
        CardStack.__init__(self)
    def allowAdd(self, cardToAdd):
        """Returns true if self can be placed on other in a build list."""
        if self.cardList == [] and cardToAdd.getNumber == 1:
            return True
        else:
            topCard = self.getTopCard()
            return topCard.getSuit() == cardToAdd.getSuit() and topCard.getNumber() + 1 == cardToAdd.getNumber()
    def isFull(self):
        return self.getTopCard().getNumber() == 13


class Card(object):
    """A card in a standard deck."""
    def __init__(self, number, suit):
        self.number = number
        self.suit = suit
        if self.suit == "Hearts" or self.suit == "Diamonds":
            self.color = "red"
        if self.suit == "Spades" or self.suit == "Clubs":
            self.color = "black"
    def getNumber(self):
        return self.number
    def getColor(self):
        return self.color
    def getSuit(self):
        return self.suit
    def __str__(self):
        if self.number < 11 and self.number > 1:
            stringToReturn = str(self.number) + " of " + self.suit
        else:
            if self.number == 1:
                stringToReturn = "Ace"
            if self.number == 11:
                stringToReturn = "Jack"
            if self.number == 12:
                stringToReturn = "Queen"
            if self.number == 13:
                stringToReturn = "King"
            stringToReturn += " of " + self.suit
        return stringToReturn

S1 = Card(1,"Spades")
S2 = Card(2,"Spades")
S3 = Card(3,"Spades")
S4 = Card(4,"Spades")
S5 = Card(5,"Spades")
S6 = Card(6,"Spades")
S7 = Card(7,"Spades")
S8 = Card(8,"Spades")
S9 = Card(9,"Spades")
S10 = Card(10,"Spades")
S11 = Card(11,"Spades")
S12 = Card(12,"Spades")
S13 = Card(13,"Spades")
H1 = Card(1,"Hearts")
H2 = Card(2,"Hearts")
H3 = Card(3,"Hearts")
H4 = Card(4,"Hearts")
H5 = Card(5,"Hearts")
H6 = Card(6,"Hearts")
H7 = Card(7,"Hearts")
H8 = Card(8,"Hearts")
H9 = Card(9,"Hearts")
H10 = Card(10,"Hearts")
H11 = Card(11,"Hearts")
H12 = Card(12,"Hearts")
H13 = Card(13,"Hearts")
C1 = Card(1,"Clubs")
C2 = Card(2,"Clubs")
C3 = Card(3,"Clubs")
C4 = Card(4,"Clubs")
C5 = Card(5,"Clubs")
C6 = Card(6,"Clubs")
C7 = Card(7,"Clubs")
C8 = Card(8,"Clubs")
C9 = Card(9,"Clubs")
C10 = Card(10,"Clubs")
C11 = Card(11,"Clubs")
C12 = Card(12,"Clubs")
C13 = Card(13,"Clubs")
D1 = Card(1,"Diamonds")
D2 = Card(2,"Diamonds")
D3 = Card(3,"Diamonds")
D4 = Card(4,"Diamonds")
D5 = Card(5,"Diamonds")
D6 = Card(6,"Diamonds")
D7 = Card(7,"Diamonds")
D8 = Card(8,"Diamonds")
D9 = Card(9,"Diamonds")
D10 = Card(10,"Diamonds")
D11 = Card(11,"Diamonds")
D12 = Card(12,"Diamonds")
D13 = Card(13,"Diamonds")

DECK = [S1,S2,S3,S4,S5,S6,S7,S8,S9,S10,S11,S12,S13,H1,H2,H3,H4,H5,H6,H7,H8,H9,H10,H11,H12,H13,C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11,C12,C13,D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D11,D12,D13]

print len(DECK), "cards in deck."
random.shuffle(DECK)
print "Deck has been shuffled."
c1 = CardStack()