Just a simple console blackjack game. The bread and butter code was written with lots of comments, so you can improve on it. Really, the most important part is figuring out when an ace is 11 in value and when it is a 1 in value, so you don't bust.
# a very simple blackjack game # in the game the cards have the following values ... # ace 11 or 1 # J, Q, K are 10 # the rest of the cards 2 - 10 are face value # you start with two cards and add them up # if you have 21, then you have the best score, a blackjack # if you have between 18 and 21, you should stand (no more cards) # if you have less then 18, you can hit (one more card at a time) # once you stand the computer plays # the better score not exceeding 21 wins # equal scores is a draw (no winner) # any score over 21 is a bust (busted player loses, both bust --> no winner) # casino blackjack games have additional options and rules from random import choice as rc def total(hand): # how many aces in the hand aces = hand.count(11) # to complicate things a little the ace can be 11 or 1 # this little while loop figures it out for you t = sum(hand) # you have gone over 21 but there is an ace if t > 21 and aces > 0: while aces > 0 and t > 21: # this will switch the ace from 11 to 1 t -= 10 aces -= 1 return t # a suit of cards in blackjack assume the following values cards = [2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11] # there are 4 suits per deck and usually several decks # this way you can assume the cards list to be an unlimited pool cwin = 0 # computer win counter pwin = 0 # player win counter while True: player =  # draw 2 cards for the player to start player.append(rc(cards)) player.append(rc(cards)) pbust = False # player busted flag cbust = False # computer busted flag while True: # loop for the player's play ... tp = total(player) print "The player has these cards %s with a total value of %d" % (player, tp) if tp > 21: print "--> The player is busted!" pbust = True break elif tp == 21: print "\a BLACKJACK!!!" break else: hs = raw_input("Hit or Stand/Done (h or s): ").lower() if 'h' in hs: player.append(rc(cards)) else: break while True: # loop for the computer's play ... comp =  comp.append(rc(cards)) comp.append(rc(cards)) # dealer generally stands around 17 or 18 while True: tc = total(comp) if tc < 18: comp.append(rc(cards)) else: break print "the computer has %s for a total of %d" % (comp, tc) # now figure out who won ... if tc > 21: print "--> The computer is busted!" cbust = True if pbust == False: print "The player wins!" pwin += 1 elif tc > tp: print "The computer wins!" cwin += 1 elif tc == tp: print "It's a draw!" elif tp > tc: if pbust == False: print "The player wins!" pwin += 1 elif cbust == False: print "The computer wins!" cwin += 1 break print print "Wins, player = %d computer = %d" % (pwin, cwin) exit = raw_input("Press Enter (q to quit): ").lower() if 'q' in exit: break print print print "Thanks for playing blackjack with the computer!"
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