Book Image

Tkinter GUI Application Development Blueprints - Second Edition

By : Bhaskar Chaudhary
Book Image

Tkinter GUI Application Development Blueprints - Second Edition

By: Bhaskar Chaudhary

Overview of this book

Tkinter is the built-in GUI package that comes with standard Python distributions. It is a cross-platform package, which means you build once and deploy everywhere. It is simple to use and intuitive in nature, making it suitable for programmers and non-programmers alike. This book will help you master the art of GUI programming. It delivers the bigger picture of GUI programming by building real-world, productive, and fun applications such as a text editor, drum machine, game of chess, audio player, drawing application, piano tutor, chat application, screen saver, port scanner, and much more. In every project, you will build on the skills acquired in the previous project and gain more expertise. You will learn to write multithreaded programs, network programs, database-driven programs, asyncio based programming and more. You will also get to know the modern best practices involved in writing GUI apps. With its rich source of sample code, you can build upon the knowledge gained with this book and use it in your own projects in the discipline of your choice.
Table of Contents (12 chapters)

Playing audio

To begin with, we have added 24 sound samples in .wav format in a folder named sounds in this chapter's code folder. These audio files correspond to the 24 notes on our keyboard. The audio files are named according to the note name it represents.

In order to keep the audio processing separate from the GUI code, we create a new file called audio.py (7.03). The code is defined as follows:

import simpleaudio as sa
from _thread import start_new_thread
import time

def play_note(note_name):
wave_obj = sa.WaveObject.from_wave_file('sounds/' + note_name + '.wav')
wave_obj.play()

def play_scale(scale):
for note in scale:
play_note(note)
time.sleep(0.5)

def play_scale_in_new_thread(scale):
start_new_thread(play_scale,(scale,))

def play_chord(scale):
for note in scale:
play_note(note)

def play_chord_in_new_thread(chord):
start_new_thread(play_chord...