Skip to Content
Python GUI Programming with Tkinter
book

Python GUI Programming with Tkinter

by Alan D. Moore
May 2018
Beginner to intermediate content levelBeginner to intermediate
452 pages
11h 26m
English
Packt Publishing
Content preview from Python GUI Programming with Tkinter

Eliminating freezes with after() and update_idletasks ()

To better understand the use of these widget methods, we'll build a simple application that uses after() and update() to keep the UI responsive during a long-running task.

This is our initial application:

import tkinter as tk from time import sleep class App(tk.Tk): def __init__(self): super().__init__() self.status = tk.StringVar() tk.Label(self, textvariable=self.status).pack() tk.Button(self, text="Run Process", command=self.run_process).pack() def run_process(self): self.status.set("Starting process") for phase in range(1, 5): self.status.set(f"Phase {phase}") self.process_phase(phase, 2) self.status.set('Complete') def process_phase(self, n, length): # some kind of heavy processing ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Python GUI Programming with Tkinter - Second Edition

Python GUI Programming with Tkinter - Second Edition

Alan D. Moore

Publisher Resources

ISBN: 9781788835886Supplemental Content