Tkinter Freeze Loop. This happens because the "Main Loop" is busy with y

This happens because the "Main Loop" is busy with your task and cannot redraw the screen. Jan 30, 2017 · Tkinter: How to use threads to preventing main event loop from "freezing" Asked 12 years, 8 months ago Modified 1 year, 8 months ago Viewed 141k times Feb 18, 2019 · How to stop Tkinter from freezing from while loop? Asked 6 years, 11 months ago Modified 6 years, 11 months ago Viewed 2k times Jan 28, 2015 · 7 Tkinter is single threaded. Aug 9, 2018 · Just for future reference, refrain from using long or infinite loops in Tkinter; they will prevent the UI from responding to user events (AKA freezing). What’s the best practice in Tkinter for running long tasks (like sorting) while keeping the GUI responsive? Should I restructure the algorithm to work with after () instead of sleep? I am trying to add threading to a Python 3. Dec 6, 2023 · Understanding the Tkinter Event Loop To run a function automatically in a Tkinter application, we must first understand the concept of the Tkinter event loop. Second one - you already closed asyncio loop. update() every iteration of the loop to make sure Tkinter is keeping up with its own queue as the while loop runs. title ("discord bot") loop = 2 def spam(): 21 hours ago · Source code: Lib/multiprocessing/ Availability: not Android, not iOS, not WASI. I have looked on the forum a bit but don't understand how to implement threading or a check function to keep my GUI from freezing. As the process is running the root window will say that it is not responding even though I know the program is running i Thread Rating: 1 2 3 4 5 Thread Modes [Tkinter] How to deal with code that blocks the mainloop, freezing the gui I set these to update every 0. Jul 22, 2025 · Explore methods to execute Python functions repeatedly within a Tkinter application without blocking the graphical user interface, covering threading and the 'after' method. You'll use decorators and the built-in time module to add Python sleep() calls to your code. After about 20 or so seconds into the game, the moving objects in the game (ball and paddle) begin to slow down, lag, and occasionally freeze for extended periods of time. Screen updates happen on each trip through the event loop. Feb 6, 2025 · Python Tkinter Mainloop The Tkinter mainloop() is an infinite loop that runs in the background of your Python GUI application. There are some alternative strategies, however: Use after after is a Tkinter method which causes the target function to be run after a certain amount of time. Dec 29, 2016 · How can I stop my Tkinter GUI from freezing when I click my button? Asked 9 years ago Modified 9 years ago Viewed 13k times If you just want the application not to freeze up awkwardly when the callback is called, you can leave your callback in the Tkinter class and call self. This is essential for creating responsive applications that perform tasks such as updating the UI, handling network requests, or running computations concurrently. The one call that is thread-safe is event_generate, so you can call that to insert a custom event into the main loop that wakes up Tkinter and have your event handler then call whatever Tkinter functions you need to call. Jul 23, 2015 · From that while loop, you call self. In Tkinter, the main event loop (the mainloop () function) handles GUI events and updates the user interface. Since you are making a server, a thread is the better choice. Discover how to correctly implement a `while` loop in tkinter without freezing the GUI interface. . The Problem: Freezing Nov 10, 2024 · Using threads in Tkinter can prevent the main event loop from freezing, resulting in a more responsive and user-friendly GUI. I developed a simple Python application doing some stuff, then I decided to add a simple GUI using Tkinter. Learn how to implement a smooth looping function in Python's `tkinter` library for GUIs without causing freezes using threading techniques. Normally, you can't run your own infinite loop parallel to Tkinter's. Below you find a working example which has its limits. It waits for events to occur, such as user interactions (clicks, key presses) or system events, and processes them accordingly. I included arguments in the function to show you that it's possible to pass args and kwargs while using multiprocessing. Oct 6, 2015 · In common with many GUI architectures tkinter uses a message queue and message loop to process it. This is because such tasks block the GUI event loop. Dec 1, 2023 · 3 I'm trying to learn Tkinter/CustomTkinter, so I followed a guide that made a YouTube video downloader with CustomTkinter GUI But when I download a video, the program freezes for like 10 mins then it actually downloads. For another approach you can take a look at this or this. However, if you need to perform longer-running tasks, for example, opening and writing a large file, downloading some data, or rendering a high-resolution image, there are going to be problems.

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