blackjack.py

from enum import Enum

Ranks = Enum("Ranks", "Ace Two Three Four Five Six Seven Eight "
                      "Nine Ten Jack Queen King")
Suits = Enum("Suits", "Diamonds Clubs Hearts Spades")

class Card(object):
    __slots__ = ('_rank', '_suit')
    # can be memory saving, especially if you're creating 6+ decks of cards for your shoe, e.g. 300+ cards.
    # this can *definitely* be seen as premature optimization, though! Chances are you'll never need to implement __slots__
    
    def __init__(self, rank, suit):
        """Card represents each card in the shoe.
        
        `rank` and `suit` allow any of the following:
          * An Enum instance (e.g. Ranks["Ace"])
          * A number in the Enum (1-13 for ranks, 1-4 for suits)
          * A name in the Enum ("Ace", "Two", "Hearts", etc...)
        """
        
        if isinstance(rank, Ranks):
            self._rank = rank
        elif isinstance(rank, int):
            self._rank = Ranks(rank)
        else:
            self._rank = Ranks[rank]
            
        if isinstance(suit, Suits):
            self._suit = suit
        elif isinstance(rank, int):
            self._suit = Ranks(rank)
        else:
            self._rank = Ranks[rank]
            
    @property
    def rank(self):
        return self._rank.name
    
    @property
    def suit(self):
        return self._suit.name
    
    @property
    def value(self):
        return min(self._rank.value, 10)