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in tkinter, when you have multiple widgets that share the same event handler function, you may want to determine which specific widget triggered the event. this can be achieved by passing additional arguments to the event handler function. here's a step-by-step tutorial on how to check which widget called a function event in tkinter:

step 1: import the necessary libraries
first, you need to import the `tkinter` library, which provides the gui toolkit, and the `tk` class for creating the main application window.



step 2: define the event handler function
next, define a function that will be called when an event occurs on the widgets. in this function, you can access the event object and determine which widget triggered the event.



step 3: create the main application window
create an instance of the `tk` class to create the main application window.



step 4: create multiple widgets
create multiple widgets, such as buttons, and bind them to the event handler function. pass the widget name as an additional argument to identify which widget triggered the event.



step 5: run the main event loop
finally, start the main event loop to display the gui and handle events.



putting it all together, here's a complete code example that demonstrates how to check which widget called a function event in tkinter:



when you run this code example, clicking on each button will trigger the event handler function and display a message indicating which button was clicked. this approach allows you to distinguish between different widgets that share the same event handler function.

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