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Asked: 2026-05-23T20:48:20+00:00

I have a Python GUI that uses Tkinter. I have to SSH into another

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I have a Python GUI that uses Tkinter. I have to SSH into another place to get data. I start a new thread to do this so that the GUI doesn’t hang. During this time, I want to pop up a screen that lets the user know it is loading. Once the program is finished getting the data, I want to close the loading screen. What must I do to have my main loop recognize that the thread is done? I’ve tried to use that thread to close the loading screen that exists in the main loop, but then I discovered that doesn’t work.

I have seen some producer consumer models that don’t use GUIs, and they have while loops. This doesn’t help me though. I also don’t want to download and install other packages, but imports are ok. Thank you for your help!

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1 Answer

  1. Editorial Team

    Have your thread set a flag when it is done. Have the GUI periodically check for that flag and dismiss the window when it is set.

    You can check for the flag by creating a function that checks for the flag, and if it’s not set it uses after to have itself run again a few hundred ms later. The window won’t go away immediately after the thread exits, but as long as the lag isn’t more than a couple hundred ms the user will never notice.

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