1. Tamil Tutorial: Using Labels in Kivy Framework with Python
2. Learn How to Work with Labels in Kivy Framework with Python: Tamil Tutorial

In this tutorial we will learn about working with label widgets in the Kivy Framework using Python. Labels are used to display text or images on the screen in a Kivy application. We will cover how to create labels, customize their appearance and properties, and how to update the text displayed on a label.

Step 1: Setting up the Kivy Environment
Before we can start working with labels in Kivy, we need to set up the Kivy environment on our machine. You can follow the official documentation on how to install Kivy on your system. Once you have Kivy installed, you can start creating Kivy applications using Python.

Step 2: Creating a Kivy Application
To start working with labels in Kivy, we need to create a Kivy application. Here is a simple Kivy application that displays a label on the screen:

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

class MyApp(App):
    def build(self):
        return Label(text='Hello, Kivy!')

if __name__ == '__main__':
    MyApp().run()

In this code snippet, we import the necessary modules from the Kivy library, create a class MyApp that inherits from App, and define a build() method that returns a label widget with the text ‘Hello, Kivy!’. Finally, we create an instance of the MyApp class and run the application using the run() method.

Step 3: Customizing Label Properties
Labels in Kivy have various properties that can be customized to change their appearance. Here are some of the common properties that can be modified:

• text: The text displayed on the label.
• font_size: The size of the font used for the text.
• color: The color of the text, specified as a tuple of RGBA values.
• background_color: The color of the background behind the text.
• pos: The position of the label on the screen.

You can modify these properties by passing them as keyword arguments when creating a label widget. Here is an example that demonstrates how to customize the appearance of a label:

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

class MyApp(App):
    def build(self):
        label = Label(text='Hello, Kivy!', 
                      font_size='20sp',
                      color=(1, 0, 0, 1),
                      background_color=(0, 0, 1, 1),
                      pos=(100, 100))
        return label

if __name__ == '__main__':
    MyApp().run()

In this code snippet, we create a label with a larger font size, red text color, blue background color, and positioned at (100, 100) on the screen.

Step 4: Updating Label Text
Labels in Kivy are not static, and you can update the text displayed on a label dynamically. To do this, you can use the text property of the label widget. Here is an example that demonstrates how to update the label text in response to a button click:

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout

class MyApp(App):
    def update_label(self, button):
        self.label.text = 'Text Updated'

    def build(self):
        layout = BoxLayout(orientation='vertical')
        self.label = Label(text='Original Text')
        button = Button(text='Update Text')
        button.bind(on_press=self.update_label)

        layout.add_widget(self.label)
        layout.add_widget(button)

        return layout

if __name__ == '__main__':
    MyApp().run()

In this code snippet, we create a label widget and a button widget inside a BoxLayout. When the button is clicked, the update_label method is called, which updates the text displayed on the label to ‘Text Updated’.

Conclusion
In this tutorial, we learned how to work with label widgets in the Kivy Framework using Python. We covered how to create labels, customize their appearance and properties, and how to update the text displayed on a label. Labels are essential components in Kivy applications for displaying text or images on the screen. You can use the techniques discussed in this tutorial to create interactive and visually appealing Kivy applications in Python.