from random import shuffle


class Card:
    def __init__(self, suit, value):
        self.suit = suit
        self.value = value

    def __repr__(self):
        return "{} of {}".format(self.value, self.suit)


class Deck:
    def __init__(self):
        suits = ['Hearts', 'Diamonds', 'Clubs', 'Spades']
        values = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K']
        # self.cards = [Card(suit, value) for suit in suits for value in values]
        self.cards = []

        for suit in suits:
            for value in values:
                self.cards.append(Card(suit, value))

    def __repr__(self):
        return "Cards remaining in deck: {}".format(len(self.cards))

    def shuffle(self):
        if len(self.cards) < 52:
            raise ValueError("Only full decks can be shuffled")
        shuffle(self.cards)
        return self

    def deal(self):
        if len(self.cards) == 0:
            raise ValueError("All cards have been dealt")
        return self.cards.pop()


my_card = Card("Hearts", "8")
print(my_card)
my_deck = Deck()
print(my_deck)
print(my_deck.deal())