if we directly import the module it will execute w/o users control..ie it will execute immediately after the import statement
which is not intended..
here few changes are made to run the module from other code..ie by importing it and calling the functionality whenever needed
we can make use of the __name__ to do this
#this is extension of blackjack game to include the new game button and shuffle button
import tkinter as tkinter
import random
try:
import tkinter
except ImportError: # python 2
import Tkinter as tkinter
def load_images(card_images):
suits=['heart','club','diamond','spade']
face_cards=['jack','queen','king']
if tkinter.TkVersion >= 8.6:
extension = 'png'
else:
extension = 'ppm'
#for each suit retrieve the image for the cards
for suit in suits:
#first the number cards 1 to 10
for card in range(1,11):
name = 'cards/{}_{}.{}'.format(str(card),suit,'png')
image = tkinter.PhotoImage(file = name)
card_images.append((card,image))
#next the Face Cards
for card in face_cards:
name = 'cards/{}_{}.{}'.format(str(card),suit,'png')
image = tkinter.PhotoImage(file = name)
card_images.append((10,image))
def deal_card(frame):
#pop the next card of the top of the deck
next_card= deck.pop(0)
#if the player keeps on playing new game then all the cards will be used so
deck.append(next_card)
#add the image to the label and display the label
tkinter.Label(frame,image=next_card[1],relief = 'raised').pack(side = 'left')
#now return the cards face value
return next_card
def score_hand(hand):
# Calculate the total score of all cards in the list.
# Only one ace can have the value 11, and this will be reduce to 1 if the hand would bust.
score = 0
ace = False
for next_card in hand:
card_value = next_card[0]
if card_value == 1 and not ace:
ace = True
card_value = 11
# score += card_value
score = score + card_value
# if we would bust, check if there is an ace and subtract 10
if score > 21 and ace:
# score -= 10
score = score - 10
ace = False
return score
def deal_dealer():
dealer_score= score_hand(dealer_hand)
while 0 < dealer_score <17:
dealer_hand.append(deal_card(dealer_card_frame))
dealer_score= score_hand(dealer_hand)
dealer_score_label.set(dealer_score)
player_score = score_hand(player_hand)
if player_score>21:
resulttext.set('Dealer Wins!')
elif dealer_score > 21 or dealer_score player_score:
resulttext.set('Dealer Wins!')
else:
resulttext.set('Draw!')
# player_score_label.set(player_score)
# if player_score>21:
# resulttext.set ('Dealer Wins')
# def deal_player():
# deal_card(player_card_frame)
def deal_player():
player_hand.append(deal_card(player_card_frame))
player_score= score_hand(player_hand)
player_score_label.set(player_score)
if player_score>21:
resulttext.set ('Dealer Wins')
# global player_score
# global player_ace
# card_value = deal_card(player_card_frame)[0]
# if card_value ==1 and not player_ace:
# player_ace = True
# card_value = 11
# player_score = player_score + card_value
# # if we would bust,check if there is an ace and subtract
# if player_score>21 and player_ace:
# player_score = player_score - 10
# player_ace = False
# player_score_label.set(player_score)
# if player_score>21:
# resulttext.set("Dealer Wins")
# print(locals())
def new_game():
global dealer_card_frame
global player_card_frame
global dealer_hand
global player_hand
# embedded frame to hold the card images
dealer_card_frame.destroy()
dealer_card_frame = tkinter.Frame(card_frame, background='green')
dealer_card_frame.grid(row=0, column=1, sticky='ew', rowspan=2)
# embedded frame to hold the card images
player_card_frame.destroy()
player_card_frame = tkinter.Frame(card_frame, background="green")
player_card_frame.grid(row=2, column=1, sticky='ew', rowspan=2)
resulttext.set("")
# Create the list to store the dealer's and player's hands
dealer_hand = []
player_hand = []
deal_player()
dealer_hand.append(deal_card(dealer_card_frame))
dealer_score_label.set(score_hand(dealer_hand))
deal_player()
def shuffle():
random.shuffle(deck)
def play():
deal_player()
dealer_hand.append(deal_card(dealer_card_frame))
dealer_score_label.set(score_hand(dealer_hand))
deal_player()
mainwindow.mainloop()
mainwindow = tkinter.Tk()
#setup the screens and frame for the dealer and the player
mainwindow.title("blackjack")
mainwindow.geometry("640x480")
mainwindow.configure(background = "green")
resulttext = tkinter.StringVar()
result = tkinter.Label(mainwindow,textvariable = resulttext)
result.grid(row=0,column=0,columnspan=3)
card_frame= tkinter.Frame(mainwindow,relief = 'sunken',borderwidth = 1,background = 'green')
card_frame.grid(row=1,column=0,sticky = 'ew',columnspan = 3,rowspan=2)
dealer_score_label = tkinter.IntVar()
tkinter.Label(card_frame,text = 'Dealer',background ='green',fg='white').grid(row=0,column=0)
tkinter.Label(card_frame,textvariable = dealer_score_label,background ='green',fg='white').grid(row=1,column=0)
#embedded Frame hold the card images
dealer_card_frame=tkinter.Frame(card_frame,background = 'green')
dealer_card_frame.grid(row=0,column=1,sticky='ew',rowspan=2)
player_score_label = tkinter.IntVar()
tkinter.Label(card_frame,text = 'Player',background ='green',fg='white').grid(row=2,column=0)
tkinter.Label(card_frame,textvariable = player_score_label,background ='green',fg='white').grid(row=3,column=0)
#embedded Frame hold the card images
player_card_frame=tkinter.Frame(card_frame,background = 'green')
player_card_frame.grid(row=2,column=1,sticky='ew',rowspan=2)
button_frame = tkinter.Frame(mainwindow)
button_frame.grid(row=3,column=0,columnspan = 3,sticky = 'w')
dealer_button=tkinter.Button(button_frame,text = 'Dealer',command = deal_dealer)
dealer_button.grid(row=0,column=0)
player_button=tkinter.Button(button_frame,text = 'Player',command = deal_player)
player_button.grid(row=0,column=1)
new_game_button=tkinter.Button(button_frame,text = 'New Game',command = new_game)
new_game_button.grid(row=0,column=2)
shuffle_button = tkinter.Button(button_frame, text="Shuffle", command=shuffle)
shuffle_button.grid(row=0, column=3)
#load cards
cards = []
load_images(cards)
# print(cards)
# print(id(cards))
#create a new deck of cards and shuffle them
deck = list(cards) + list(cards) + list(cards)
shuffle()
# Create the list to store the dealer's and player's hands
dealer_hand = []
player_hand = []
if __name__ == '__main__':
play()
we can import by using the code like below one
import blackjacktest1
print (__name__)
blackjacktest1.play()
