Hello World in Kivy

Kivy is an opensource multi-platform GUI development library for Python and can run on iOS, Android, Windows, OS X, and GNU/Linux. It helps develop applications that make use of innovative, multi-touch UI. The fundamental idea behind Kivy is to enable the developer to build an app once and use it across all devices, making the code reusable and deployable, allowing for quick and easy interaction design and rapid prototyping.

Note: Since Kivy is based in Python, Python is a prerequisite before installing Kivy. For more information, refer to Python Programming Language.

Installation

There are several ways to get Kivy installed in your system, depending upon your Operating System. Let’s dive into it.
Windows OS

  • Using pip
    pip install kivy
  • Using conda
    conda install -c conda-forge kivy

Linux

  • Add the PPA using the following command:
    sudo add-apt-repository ppa:kivy-team/kivy
  • Update your package list using your package manager-
    sudo apt-get update
  • Install Kivy
    sudo apt-get install python3-kivy

OS X



  • Using Wheels
    Wheels are precompiled binaries for the specific platform you are on. All you need to do to install Kivy using wheels on osx is

    $ python -m pip install kivy

Hello World in Kivy

  • Let’s create a Python file i.e. with .py extension.
  • First of all let’s import kivy and ensure it’s up-to-date.
     

    import kivy
    
    # Replace this with your 
    # current version
    kivy.require('1.11.1')   
    # To find your kivy version use,
    # print(kivy.__version__)
    
  • Now to create a Kivy interface we need to import Kivy App module in our program using the following code:
     

    from kivy.app import App
    
  • Now import Label from kivy.uix.label
     

    from kivy.uix.label import Label
    
  • Now let’s write main block that prints Hello World, yayy finally!!
     

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

Complete Program

filter_none

edit
close

play_arrow

link
brightness_4
code

import kivy
from kivy.app import App
from kivy.uix.label import Label
  
  
# Replace this with your 
# current version
kivy.require('1.11.1')  
  
# Defining a class
class MyFirstKivyApp(App):
      
    # Function that returns 
    # the root widget
    def build(self):
          
        # Label with text Hello World is 
        # returned as root widget
        return Label(text ="Hello World !")          
  
  
# Here our class is initialized
# and its run() method is called. 
# This initializes and starts 
# our Kivy application.
MyFirstKivyApp().run()               

chevron_right


Output:

hello-world-kivy

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.