How to create a simple screen using Tkinter?

Tkinter is Python's standard GUI library for creating desktop applications. We will create a simple screen using the Tkinter library to demonstrate the basic setup.

Algorithm

Step 1: Import tkinter.
Step 2: Create an object of the tkinter class.
Step 3: Display the screen using mainloop().

Example Code

Here's how to create a basic Tkinter window ?

import tkinter as tk

# Create the main window
window = tk.Tk()

# Set window title
window.title("Simple Tkinter Screen")

# Set window size
window.geometry("400x300")

# Start the event loop
window.mainloop()

The output of the above code is ?

A window with title "Simple Tkinter Screen" and size 400x300 pixels will appear on screen.

Key Components

Let's understand each part of the code ?

• tk.Tk() − Creates the main window object
• title() − Sets the window title displayed in the title bar
• geometry() − Sets the window size in "width x height" format
• mainloop() − Starts the event loop that keeps the window running

Enhanced Example

Here's a more complete example with additional window properties ?

import tkinter as tk

# Create main window
window = tk.Tk()

# Configure window properties
window.title("My First GUI Application")
window.geometry("500x400")
window.configure(bg="lightblue")

# Make window non-resizable (optional)
window.resizable(False, False)

# Add a simple label
label = tk.Label(window, text="Welcome to Tkinter!", font=("Arial", 16))
label.pack(pady=50)

# Start the GUI event loop
window.mainloop()

This creates a blue window with a welcome message that cannot be resized.

Conclusion

Creating a simple Tkinter screen requires importing tkinter, creating a Tk() object, and calling mainloop(). Use geometry() and title() methods to customize your window appearance and always end with mainloop() to display the GUI.