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Tkinter GUI Programming by Example by David Love

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Using a thread

In order to use a thread in Python, we can import a module named threading and subclass its Thread class.  Inside our new class, we need to overwrite the run method and perform our logic in there. Once we have done this, we can call the start method on an instance of our class to execute its task in a separate thread.

Let's update our demo application to use a thread. We'll begin by importing the threading module and creating a subclass of Thread:

import tkinter as tkimport timeimport threadingclass WorkThread(threading.Thread):    def run(self):        label.configure(text="Doing work")        time.sleep(5)        label.configure(text="Finished")        return...

Our old work function has been moved to the run method of our Thread subclass. This allows ...

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