Re: Bring object 'out of' Class?
dave [EMAIL PROTECTED] writes: Hello, I'm currently on the class section of my self-taught journey and have a question about classes: is it possible to bring a object created inside the class definitions outside the class so it can be accessed in the interpreter? For example, right now I'm working (within Allen Downey's Python Programmer book) with creating a 'hand' of cards. I want to be able to deal to 'x' amount of cards to 'x' amount of hands and then be able to manipulate those hands afterwards. I'm not sure if even what I'm asking is possible or if I'm getting ahead of myself. As always, thanks for all your help. My learning is greatly enhanced with everyone's input on this board. Please feel free to comment/critique the code... Here is the section of code that deals hands (but doesn't do anything past that): def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' for i in range(num_of_hands): handname = Hand('hand%d' % i) self.deal(handname, num) print '%s' % (handname.label), '\n', handname, '\n' You need to use a 'return' statement: def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' hands = [] for i in range(num_of_hands): newhand = Hand('hand%d' % i) self.deal(newhand, num) hands.append(newhand) print '%s' % (handname.label), '\n', handname, '\n' return Hand Then you can write: hands = deck.deal_cards(4, 5) # On fait une belotte? And I don't see the need of defining 'Hand' inside 'Deck'. HTH -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
Re: Bring object 'out of' Class?
On 6/1/08, Arnaud Delobelle [EMAIL PROTECTED] wrote: dave [EMAIL PROTECTED] writes: [..] def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' for i in range(num_of_hands): handname = Hand('hand%d' % i) self.deal(handname, num) print '%s' % (handname.label), '\n', handname, '\n' You need to use a 'return' statement: def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' hands = [] for i in range(num_of_hands): newhand = Hand('hand%d' % i) self.deal(newhand, num) hands.append(newhand) print '%s' % (handname.label), '\n', handname, '\n' return Hand Should be: return hands Then you can write: hands = deck.deal_cards(4, 5) # On fait une belotte? [...] -- http://mail.python.org/mailman/listinfo/python-list
Re: Bring object 'out of' Class?
Then you can write: hands = deck.deal_cards(4, 5) # On fait une belotte? And I don't see the need of defining 'Hand' inside 'Deck'. HTH Thanks for the input. I believe using 'class Hand(Deck):' is to illustrate (in the book) inheritance and how it can be used. By using 'Hand(Deck)' I can then use the methods (pop_card, add_cards, etc..) defined in the 'Deck' class. -- http://mail.python.org/mailman/listinfo/python-list
Bring object 'out of' Class?
Hello, I'm currently on the class section of my self-taught journey and have a question about classes: is it possible to bring a object created inside the class definitions outside the class so it can be accessed in the interpreter? For example, right now I'm working (within Allen Downey's Python Programmer book) with creating a 'hand' of cards. I want to be able to deal to 'x' amount of cards to 'x' amount of hands and then be able to manipulate those hands afterwards. I'm not sure if even what I'm asking is possible or if I'm getting ahead of myself. As always, thanks for all your help. My learning is greatly enhanced with everyone's input on this board. Please feel free to comment/critique the code... Here is the section of code that deals hands (but doesn't do anything past that): def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' for i in range(num_of_hands): handname = Hand('hand%d' % i) self.deal(handname, num) print '%s' % (handname.label), '\n', handname, '\n' and here is the all of the code: #!/usr/bin/env python import random class Card: represents a playing card attributes: rank, suit def __init__(self, suit=0, rank=3): self.suit = suit self.rank = rank suit_names = [Clubs, Diamonds, Hearts, Spades] rank_names = [None, Ace, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Jack, Queen, King] def __str__(self): #prints card in format: Rank 'of' Suit# return '%s of %s' % (Card.rank_names[self.rank], Card.suit_names[self.suit]) def __cmp__(self, other): #evaluates which card is ranked higher by suit/rank #arbitrary definition. depends on the card game card1 = self.suit, self.rank card2 = other.suit, other.rank return cmp(card1, card2) class Deck: represents a deck of cards. 52 card, 4 suits, 13 cards/suit def __init__(self): self.cards = [] for suit in range(4): for rank in range(1, 14): card = Card(suit, rank) self.cards.append(card) def __str__(self): res = [] for card in self.cards: res.append(str(card)) return '\n'.join(res) def pop_card(self): '''removes a card and returns it to another object''' return self.cards.pop() def add_cards(self, card): #adds a card to an object return self.cards.append(card) def shuffle(self): '''must import random, shuffles the deck''' random.shuffle(self.cards) def sort_deck(self): self.cards.sort() def deal(self, hand, num): '''moves cards from one object to another''' for i in range(num): hand.add_cards(self.pop_card()) def deal_cards(self, num_of_hands, num): '''deals x amount of cards(num) to each hand''' for i in range(num_of_hands): handname = Hand('hand%d' % i) self.deal(handname, num) print '%s' % (handname.label), '\n', handname, '\n' class Hand(Deck): child class of Deck. Represents a hand of cards def __init__(self, label= ): self.cards = [] self.label = label -- http://mail.python.org/mailman/listinfo/python-list