[Tkinter-discuss] Tkinter GUI freezing

[Bharath Reddy A.]

Hi all,
I have created a GUI using Tkinter.
I have a button "GO", which when clicked calls a function (mainFunc).
That function takes around 60 seconds to execute and in the mean time
outputs many numbers which have to be displayed in a list in the GUI.

I have attempted the following:

   1.  I created a thread whose target = mainFunc, when the button is
   clicked. I can see the function printing stuff in terminal. But the GUI
   still freezes.
   2.  When I tried to create a  thread whose target = root.mainloop(), the
   GUI doesn't display at all, (Python.app launches but the GUI is not
   displayed),

*Can you please help me how to create threads exactly???*

I am attaching my code along with the mail

main. mainFunction() is the function that takes approx 60 seconds to
execute and that should be running in parallel with GUI/ in background.
Thanks in advance...
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