Code files

Tkinter GUI Programming by Example, published by Packt

Author: subhalaxmin

Chapter01/Ch1/ch1-1.py

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+import tkinter as tk
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+
+        label = tk.Label(self, text="Hello World!")
+        label.pack(fill=tk.BOTH, expand=1, padx=100, pady=50)
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter01/Ch1/ch1-2.py

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+import tkinter as tk
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+
+        self.label = tk.Label(self, text="Choose One")
+        self.label.pack(fill=tk.BOTH, expand=1, padx=100, pady=30)
+
+        hello_button = tk.Button(self, text="Say Hello", command=self.say_hello)
+        hello_button.pack(side=tk.LEFT, padx=(20, 0), pady=(0, 20))
+
+        goodbye_button = tk.Button(self, text="Say Goodbye", command=self.say_goodbye)
+        goodbye_button.pack(side=tk.RIGHT, padx=(0, 20), pady=(0, 20))
+
+    def say_hello(self):
+        self.label.configure(text="Hello World!")
+
+    def say_goodbye(self):
+        self.label.configure(text="Goodbye! \n (Closing in 2 seconds)")
+        self.after(2000, self.destroy)
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter01/Ch1/ch1-3.py

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+import tkinter as tk
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+        self.label_text = tk.StringVar()
+        self.label_text.set("Choose One")
+
+        self.label = tk.Label(self, textvar=self.label_text)
+        self.label.pack(fill=tk.BOTH, expand=1, padx=100, pady=30)
+
+        hello_button = tk.Button(self, text="Say Hello", command=self.say_hello)
+        hello_button.pack(side=tk.LEFT, padx=(20, 0), pady=(0, 20))
+
+        goodbye_button = tk.Button(self, text="Say Goodbye", command=self.say_goodbye)
+        goodbye_button.pack(side=tk.RIGHT, padx=(0, 20), pady=(0, 20))
+
+    def say_hello(self):
+        self.label_text.set("Hello World")
+
+    def say_goodbye(self):
+        self.label_text.set("Goodbye! \n (Closing in 2 seconds)")
+        self.after(2000, self.destroy)
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter01/Ch1/ch1-4.py

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+import tkinter as tk
+import tkinter.messagebox as msgbox
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+        self.label_text = tk.StringVar()
+        self.label_text.set("Choose One")
+
+        self.label = tk.Label(self, textvar=self.label_text)
+        self.label.pack(fill=tk.BOTH, expand=1, padx=100, pady=30)
+
+        hello_button = tk.Button(self, text="Say Hello", command=self.say_hello)
+        hello_button.pack(side=tk.LEFT, padx=(20, 0), pady=(0, 20))
+
+        goodbye_button = tk.Button(self, text="Say Goodbye", command=self.say_goodbye)
+        goodbye_button.pack(side=tk.RIGHT, padx=(0, 20), pady=(0, 20))
+
+    def say_hello(self):
+        msgbox.showinfo("Hello", "Hello World!")
+
+    def say_goodbye(self):
+        self.label_text.set("Window will close in 2 seconds")
+        msgbox.showinfo("Goodbye!", "Goodbye, it's been fun!")
+        self.after(2000, self.destroy)
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter01/Ch1/ch1-5.py

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+import tkinter as tk
+import tkinter.messagebox as msgbox
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+        self.label_text = tk.StringVar()
+        self.label_text.set("Choose One")
+
+        self.label = tk.Label(self, textvar=self.label_text)
+        self.label.pack(fill=tk.BOTH, expand=1, padx=100, pady=30)
+
+        hello_button = tk.Button(self, text="Say Hello", command=self.say_hello)
+        hello_button.pack(side=tk.LEFT, padx=(20, 0), pady=(0, 20))
+
+        goodbye_button = tk.Button(self, text="Say Goodbye", command=self.say_goodbye)
+        goodbye_button.pack(side=tk.RIGHT, padx=(0, 20), pady=(0, 20))
+
+    def say_hello(self):
+        msgbox.showinfo("Hello", "Hello World!")
+
+    def say_goodbye(self):
+        if msgbox.askyesno("Close Window?", "Would you like to close this window?"):
+            self.label_text.set("Window will close in 2 seconds")
+            self.after(2000, self.destroy)
+        else:
+            msgbox.showinfo("Not Closing", "Great! This window will stay open.")
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter01/Ch1/ch1-6.py

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+import tkinter as tk
+import tkinter.messagebox as msgbox
+
+class Window(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        self.title("Hello Tkinter")
+        self.label_text = tk.StringVar()
+        self.label_text.set("My Name Is: ")
+
+        self.name_text = tk.StringVar()
+
+        self.label = tk.Label(self, textvar=self.label_text)
+        self.label.pack(fill=tk.BOTH, expand=1, padx=100, pady=10)
+
+        self.name_entry = tk.Entry(self, textvar=self.name_text)
+        self.name_entry.pack(fill=tk.BOTH, expand=1, padx=20, pady=20)
+
+        hello_button = tk.Button(self, text="Say Hello", command=self.say_hello)
+        hello_button.pack(side=tk.LEFT, padx=(20, 0), pady=(0, 20))
+
+        goodbye_button = tk.Button(self, text="Say Goodbye", command=self.say_goodbye)
+        goodbye_button.pack(side=tk.RIGHT, padx=(0, 20), pady=(0, 20))
+
+    def say_hello(self):
+        message = "Hello there " + self.name_entry.get()
+        msgbox.showinfo("Hello", message)
+
+    def say_goodbye(self):
+        if msgbox.askyesno("Close Window?", "Would you like to close this window?"):
+            message = "Window will close in 2 seconds - goodybye " + self.name_entry.get()
+            self.label_text.set(message)
+            self.after(2000, self.destroy)
+        else:
+            msgbox.showinfo("Not Closing", "Great! This window will stay open.")
+
+
+if __name__ == "__main__":
+    window = Window()
+    window.mainloop()
+        

Chapter02/Ch2/Ch2-class-2.py

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+class Dog:
+    def __init__(self, name):
+        self.name = name
+
+    def speak(self):
+        print("Woof! My name is", self.name)
+
+
+class Greyhound(Dog):
+    def __init__(self, name):
+        super().__init__(name)
+
+    def speak(self):
+        print("Zoom! My name is", self.name)
+
+    def race(self, opponent):
+        print(self.name, "is running faster than", opponent.name)
+
+class JackRussell(Dog):
+    def __init__(self, name, color):
+        super().__init__(name)
+
+        self.color = color
+
+    def get_color(self):
+        print(self.name, "is", self.color)
+
+
+greyhound = Greyhound("Tessa")
+jack_russell = JackRussell("Jack", "brown")
+dog = Dog("Boris")
+
+greyhound.speak()
+jack_russell.speak()
+dog.speak()
+
+greyhound.race(jack_russell)
+greyhound.race(dog)
+
+jack_russell.get_color()
+

Chapter02/Ch2/Ch2-class.py

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+class Dog:
+    def __init__(self, name):
+        self.name = name
+
+    def speak(self):
+        print("Woof! My name is", self.name)
+
+
+dog_one = Dog('Rover')
+dog_two = Dog('Rex')
+
+dog_one.speak()
+dog_two.speak()

Chapter02/Ch2/ch2.py

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+import random
+
+
+class Card:
+    def __init__(self, suit, value):
+        self.suit = suit
+        self.value = value
+
+    def __repr__(self):
+        return " of ".join((self.value, self.suit))
+
+
+class Deck:
+    def __init__(self):
+        self.cards = [Card(s, v) for s in ["Spades", "Clubs", "Hearts", "Diamonds"] for v in
+                      ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"]]
+
+    def shuffle(self):
+        if len(self.cards) > 1:
+            random.shuffle(self.cards)
+
+    def deal(self):
+        if len(self.cards) > 1:
+            return self.cards.pop(0)
+
+
+class Hand:
+    def __init__(self, dealer=False):
+        self.dealer = dealer
+        self.cards = []
+        self.value = 0
+
+    def add_card(self, card):
+        self.cards.append(card)
+
+    def calculate_value(self):
+        self.value = 0
+        has_ace = False
+        for card in self.cards:
+            if card.value.isnumeric():
+                self.value += int(card.value)
+            else:
+                if card.value == "A":
+                    has_ace = True
+                    self.value += 11
+                else:
+                    self.value += 10
+
+        if has_ace and self.value > 21:
+            self.value -= 10
+
+    def get_value(self):
+        self.calculate_value()
+        return self.value
+
+    def display(self):
+        if self.dealer:
+            print("hidden")
+            print(self.cards[1])
+        else:
+            for card in self.cards:
+                print(card)
+            print("Value:", self.get_value())
+
+
+class Game:
+    def __init__(self):
+        playing = True
+
+        while playing:
+            self.deck = Deck()
+            self.deck.shuffle()
+
+            self.player_hand = Hand()
+            self.dealer_hand = Hand(dealer=True)
+
+            for i in range(2):
+                self.player_hand.add_card(self.deck.deal())
+                self.dealer_hand.add_card(self.deck.deal())
+
+            print("Your hand is:")
+            self.player_hand.display()
+            print()
+            print("Dealer's hand is:")
+            self.dealer_hand.display()
+
+            game_over = False
+
+            while not game_over:
+                player_has_blackjack, dealer_has_blackjack = self.check_for_blackjack()
+                if player_has_blackjack or dealer_has_blackjack:
+                    game_over = True
+                    self.show_blackjack_results(player_has_blackjack, dealer_has_blackjack)
+                    continue
+
+                choice = input("Please choose [Hit / Stick] ").lower()
+                while choice not in ["h", "s", "hit", "stick"]:
+                    choice = input("Please enter 'hit' or 'stick' (or H/S) ").lower()
+                if choice in ['hit', 'h']:
+                    self.player_hand.add_card(self.deck.deal())
+                    self.player_hand.display()
+                    if self.player_is_over():
+                        print("You have lost!")
+                        game_over = True
+                else:
+                    player_hand_value = self.player_hand.get_value()
+                    dealer_hand_value = self.dealer_hand.get_value()
+
+                    print("Final Results")
+                    print("Your hand:", player_hand_value)
+                    print("Dealer's hand:", dealer_hand_value)
+
+                    if player_hand_value > dealer_hand_value:
+                        print("You Win!")
+                    elif player_hand_value == dealer_hand_value:
+                        print("Tie!")
+                    else:
+                        print("Dealer Wins!")
+                    game_over = True
+            
+            again = input("Play Again? [Y/N] ")
+            while again.lower() not in ["y", "n"]:
+                again = input("Please enter Y or N ")
+            if again.lower() == "n":
+                print("Thanks for playing!")
+                playing = False
+            else:
+                game_over = False
+
+    def player_is_over(self):
+        return self.player_hand.get_value() > 21
+
+    def check_for_blackjack(self):
+        player = False
+        dealer = False
+        if self.player_hand.get_value() == 21:
+            player = True
+        if self.dealer_hand.get_value() == 21:
+            dealer = True
+
+        return player, dealer
+
+    def show_blackjack_results(self, player_has_blackjack, dealer_has_blackjack):
+        if player_has_blackjack and dealer_has_blackjack:
+            print("Both players have blackjack! Draw!")
+
+        elif player_has_blackjack:
+            print("You have blackjack! You win!")
+
+        elif dealer_has_blackjack:
+            print("Dealer has blackjack! Dealer wins!")
+
+
+if __name__ == "__main__":
+    g = Game()