Kivy is a platform independent GUI tool in Python. As it can be run on Android, IOS, Linux and Windows etc. Kivy provides you the functionality to write the code for once and run it on different platforms. It is basically used to develop the Android application, but it does not mean that it cannot be used on Desktops applications.
The Button is a Label with associated actions that are triggered when the button is pressed (or released after a click/touch). We can add functions behind the button and style the button.
# import kivy module import kivy # this restrict the kivy version below this kivy version you cannot # use the app or software kivy.require("1.9.1") # base Class of your App inherits from the App class. # app:always refers to the instance of your application from kivy.app import App # creates the button in kivy if not imported shows the error from kivy.uix.button import Button # class in which we are creating the button class ButtonApp(App): def build(self): # use a (r, g, b, a) tuple btn = Button(text ="Push Me !", font_size ="20sp", background_color =(1, 1, 1, 1), color =(1, 1, 1, 1), size =(32, 32), size_hint =(.2, .2), pos =(300, 250)) # bind() use to bind the button to function callback btn.bind(on_press = self.callback) return btn # callback function tells when button pressed def callback(self, event): print("button pressed") print('Kivy!') # creating the object root for ButtonApp() class root = ButtonApp() #run function runs the whole program. run() method which calls the #target function passed to the constructor. root.run()