rjgtoys.tkthread: Simplify using threads with tkinter

Tk (in Python, tkinter) is not thread-safe. It’s not possible to interact with a tkinter UI from a thread other than the one in which its event loop is running.

Workarounds for this problem generally boil down to doing some sort of polling, which either introduces delays, or is wasteful of CPU resource.

This package provides a ‘bridge’ between threads and tkinter that does not suffer from either of these problems; threads can run freely, and can schedule operations to be performed on a tkinter UI. Those operations will be picked up with minimal delay and executed asynchronously with the threads, but without incurring any polling cost.

The examples provided demonstrate the difference in CPU cost between a ‘polling’ solution and the one provided by this package.

• Tutorial
  • Step 1: A simple pyudev application
  • Step 2: A simple application using Tk
  • Step 3: Efficient event handling with a rjgtoys.tkthread.EventQueue
  • Step 4: Generic event collection with rjgtoys.tkthread.EventGenerator
• API Reference
• Getting it
• To-Do List