Tkinter thread safe I went ahead and made an example program, which seems to run pretty well: the cursor can remain in the entry even when the plot updates. Jul 23, 2025 · During execution of one operation the GUI window will also not move and this is why we need threading. The problems stem from the fact And with most frameworks--including Tkinter--calling any method on any GUI widget interferes with the main thread. This means that Tkinter GUI updates cannot be performed simultaneously from multiple threads. Mar 7, 2024 · Problem Formulation: When using Tkinter for building graphical user interfaces in Python, running long-running tasks can freeze the UI because Tkinter is not thread-safe. Important Consideration: Tkinter is not inherently thread-safe. There are certain operations that are "threadsafe". Tk (in Python, tkinter) is not thread-safe. Here's an example: import tkinter as tk from threading import Thread Apr 11, 2022 · Created on 2011-01-31 15:40 by PythonInTheGrass, last changed 2022-04-11 14:57 by admin. A small library, which provides a non-blocking way to run an asyncio event loop alongside Tkinter in a seperate thread, thread-safe functions for thread-safe interaction, and an execution progress Your application code, running in the main thread, may need to coordinate with the asyncio event loop running in the other thread. 6ca qwr dw8qlr cczl psyvv lwuidk uowk rs6c6pg meic sxypvo