How To Set Title In Python

In this tutorial, we will learn how to set the title for a window or a program in Python. This can be useful when creating GUI applications or when customizing the appearance of a user interface.

We will be using the Tkinter library, which is the standard Python library for creating lightweight and simple GUI applications. Let’s get started!

Step 1: Import the Tkinter library

First, you need to import the Tkinter library in your Python script. You can do this by simply writing the following line at the beginning of your code:

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import tkinter as tk

Step 2: Create a window

After importing the Tkinter library, you can create a window where you want to set the title. You can create a new window using the Tk() class.

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root = tk.Tk()

Step 3: Set the window title

Now, you can set the title of the window using the title() method on the root object. The title() method accepts a single argument, which is the string you want to use as the title of your window.

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root.title("My Python Application")

Step 4: Create an event loop

In order to keep the window open and to make it responsive, you need to set up an event loop using the mainloop() method on the root object.

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root.mainloop()

Full code

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import tkinter as tk
 
root = tk.Tk()
root.title("My Python Application")
root.mainloop()

Output

A new window with the title "My Python Application" will appear.

Step 5: Modify the title during runtime

If you want to modify the window title during the runtime of the application, you can simply call the title() method again with the new title:

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root.title("New Title")

It’s also possible to create a function that changes the title when a certain event occurs, such as pressing a button:

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def change_title():
    root.title("New Title")
 
btn = tk.Button(root, text="Change Title", command=change_title)
btn.pack()

Full code with title modification

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import tkinter as tk
 
def change_title():
    root.title("New Title")
 
root = tk.Tk()
root.title("My Python Application")
 
btn = tk.Button(root, text="Change Title", command=change_title)
btn.pack()
 
root.mainloop()

Output

Conclusion

In this tutorial, we learned how to set the title of a window in Python using the Tkinter library. By following these simple steps, you can easily create a graphical user interface with a custom title for your Python application.