How to Close a Window in Python

In the world of programming, we often encounter situations where we have to open and close different windows.

Understanding how to implement this in a particular programming language is a key part of creating a smooth user experience. In this tutorial, we will guide you on how to close a window in Python, using the popular Tkinter module.

Step 1: Import the Tkinter Module

The first step in our process is to import the Tkinter module. This Python standard library allows for the creation of graphical user interfaces (GUI). Implement the import command as shown below:

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import tkinter as tk

Step 2: Create a Window Instance

Next, we create an instance of a window using the Tk() function from the Tkinter module. Assign it to a suitable variable, for example, ‘window’.

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window = tk.Tk()

Step 3: Create a Close Function

Now, we’ll define a function to close the window. This function will utilize the destroy method associated with the window instance created in the previous step.

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def close_window():
    window.destroy()

Step 4: Create a Button to Close the Window

The next step involves creating a button object that can call the close_window function when clicked. You can decide on the button label and link it to the close_window function using the command attribute.

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button = tk.Button(window, text="Close Window", command=close_window)
button.pack()

Step 5: Run the Tkinter Loop

Finally, we tell the program to execute the Tkinter event loop using window.mainloop(). This will keep your window open until the user decides to close it or the close_window function is called.

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window.mainloop()

The Complete Code

Here is all the code together:

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import tkinter as tk
 
window = tk.Tk()
 
def close_window():
    window.destroy()
 
button = tk.Button(window, text="Close Window", command=close_window)
button.pack()
 
window.mainloop()

Conclusion

Congratulations, you have successfully created and closed a window using Python! Mastering this basic function is critical in manipulating GUIs within the Python programming environment.

Always remember that being able to control features like this in your program allows for a much cleaner and professional-looking end result. Happy coding!