PyQt5 – How change size of indicator in Radio Button

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In this article we will see how we can change the size of indicator in radio button, indicator is a part of radio button which is round in shape and tells about the radio button is checked or not. When we change the size of the radio button only text part size get changed, indicator size remained same.

In order to change the size of indicator in radio button we have to change the style sheet code associated with radio button object. Below is the style sheet code.

QRadioButton::indicator
{
width : 20px;
height : 20px;
}

Below is the implementation.

# importing libraries 
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui 
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys 
  
  
class Window(QMainWindow): 
  
    def __init__(self): 
        super().__init__() 
  
        # setting title 
        self.setWindowTitle("Python ") 
  
        # setting geometry 
        self.setGeometry(100, 100, 600, 400) 
  
        # calling method 
        self.UiComponents() 
  
        # showing all the widgets 
        self.show() 
  
    # method for widgets 
    def UiComponents(self): 
  
        # creating a radio button 
        self.radio_button = QRadioButton(self) 
  
        # setting geometry of radio button 
        self.radio_button.setGeometry(200, 150, 120, 40) 
  
        # setting text to radio button 
        self.radio_button.setText("Radio Button") 
  
        # changing style sheet code of radio button 
        # setting width and height of indicator  
        self.radio_button.setStyleSheet("QRadioButton::indicator"
                                        "{"
                                        "width : 20px;"
                                        "height : 20px;"
                                        "}") 
  
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 