Hello World in Kivy

Last Updated : 9 Oct, 2025

In this article, we will see how to create a simple Python application using Kivy, a cross-platform framework for building GUI applications. The program will display a simple “Hello World” message on the screen. Let's see step by step implementation.

Steps to Create the App

Step 1: Create a Python File

Create a new file with a .py extension, for example hello_kivy.py This file will contain the Kivy code and will be executed to run the application.

Step 2: Import Required Modules

Import Kivy and the components needed for the GUI:

Python 
import kivy
from kivy.app import App
from kivy.uix.label import Label

Explanation:

  • import kivy ensures the Kivy library is available.
  • App is the base class for creating Kivy applications.
  • Label is a widget used to display text in the application window.

Step 3: Set Kivy Version

Ensure the Kivy version meets your requirements:

Python 
kivy.require('1.11.1')

This checks that the Kivy version installed is compatible. If the version is lower, an error is raised.

Step 4: Define the Application Class

Create a custom class that inherits from App:

Python 
class MyFirstKivyApp(App):
    
    def build(self):
        return Label(text="Hello World!")

Explanation:

  • class MyFirstKivyApp(App) defines the application class.
  • build() method returns the root widget, which in this case is a Label displaying “Hello World!”.
  • This class sets up the GUI and contains all the application logic.

Step 5: Run the Application

Initialize and start the Kivy application:

Python 
MyFirstKivyApp().run()

Explanation:

  • MyFirstKivyApp() creates an instance of the application.
  • .run() starts the Kivy event loop and displays the window with the Label widget.

Output

Output
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