How Can I Create a Smoothly Updating Clock in Tkinter Without Freezing the GUI?

Scheduling Updates in Tkinter for Clock Applications

In Tkinter, creating a clock that updates itself can pose a challenge. Using time.sleep() in a loop to achieve this can freeze the GUI. This article explores how to schedule updates in Tkinter, enabling you to create a working clock.

Tkinter root windows provide the after method. This method schedules a function to be called after a specified time interval. By calling after within the scheduled function, a recurring event is established.

Here's a Python code example:

Remember, while after schedules the function call, it may not execute it exactly on time due to potential app activity. However, Tkinter's single-threaded nature usually results in minimal delays in the order of microseconds.

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