Python Tkinter events and event handling - Exercises and Solutions

Python Tkinter - Events and Event Handling [13 exercises with solution]

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With Tkinter's event handling capabilities, developers can define how their applications respond to various user actions, such as button clicks, keyboard input, and mouse interactions. Through the use of this functionality, developers can build dynamic and user-friendly applications, enabling seamless user interaction and control.

1. Write a Python program that displays a button using Tkinter. When the button is clicked, display a message box with the message.

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2. Write a Python program using Tkinter that creates a label and a button. When the button is clicked, change the label text to "Button Clicked!".

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3. Write a Python program that implements a simple calculator application using Tkinter with buttons for digits (0-9) and arithmetic operators (+, -, *, /). Implement event handling to calculate.

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4. Write a Python program that displays a list of items in a Tkinter Listbox. Implement an event handler to print the selected item when a button is clicked.

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5. Write a Python program that designs a color picker application using Tkinter. When a color is selected from a color dialog, change the foreground color of a Label widget.

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6. Write a Python program that allows users to input their name into a Tkinter Entry widget. When they press Enter or click a button, display a message with their name.

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7. Write a Python program that implements a file explorer application using Tkinter. Allow users to select a folder, and when a folder is selected, display its contents in a Listbox.

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8. Write a Python program that creates a text editor with Tkinter that opens a file dialog to open and edit text files. Implement event handling to save changes when a "Save" button is clicked.

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9. Write a Python program to design a drawing application with Tkinter that allows users to draw freehand on a Canvas widget. Implement an "Undo" button to remove the last drawn line.

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10. Write a Python program that builds a timer application using Tkinter. The application starts a countdown when a "Start" button is clicked and stops when a "Stop" button is clicked.

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11. Write a Python program that uses Tkinter to create a menu with options like "File," "Edit," and "Help." Implement event handling for the menu items to perform actions.

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12. Write a Python program to create a simple game using Tkinter where a character moves on arrow key presses. Implement event handling for left, right, up, and down arrow keys.

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13. Write a Python program to build a Tkinter scale widget that adjusts the font size of text displayed in a Label widget as the scale value changes.

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