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Tkinter GUI Application Development Blueprints

You're reading from   Tkinter GUI Application Development Blueprints Master GUI programming in Tkinter as you design, implement, and deliver 10 real-world applications

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Product type Paperback
Published in Nov 2015
Publisher Packt
ISBN-13 9781785889738
Length 340 pages
Edition 1st Edition
Languages
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Author (1):
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Bhaskar Chaudhary Bhaskar Chaudhary
Author Profile Icon Bhaskar Chaudhary
Bhaskar Chaudhary
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Table of Contents (10) Chapters Close

Preface 1. Meet Tkinter FREE CHAPTER 2. Making a Text Editor 3. Programmable Drum Machine 4. A Game of Chess 5. Building an Audio Player 6. Paint Application 7. Multiple Fun Projects 8. Miscellaneous Tips Index

Building a Snake game


Let's now build a simple Snake game. As usual, we will be making use of the Canvas widget to provide the platform for our Snake program.

We will use canvas.create_line to draw our snake, and canvas.create_rectangle to draw the snake food.

The primary objective for this project is to learn how to use Queue as a synchronization technique in a multithreaded application.

Writing a multithreaded application poses the challenge of synchronization between different threads. When multiple threads try to access shared data simultaneously, the data is likely to get corrupted or modified in ways that were not intended in the program. This is called a race condition.

7.02_race_condition.py demonstrates a race condition. The program is as follows:

import threading

class RaceConditionDemo:

    def __init__(self):
        self.shared_var = 0 
        self.total_count = 100000
        self.demo_of_race_condition()

    def increment(self):
        for i in range(self.total_count):
  ...
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