PyQt5 – Changing background color of Push Button when mouse hover over it

Last Updated : 22 Apr, 2020

In this article we will see how to set background color to a push button when mouse hover. It gets back to its default color when cursor is not on the push button.

In order to do this we have to change the style sheet and had to add background color of push button when mouse hover over it. Below is the style sheet code.

QPushButton::hover
{
background-color : lightgreen;
}

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 push button 
        button = QPushButton("Geek Button", self) 
  
        # setting geometry of the push button 
        button.setGeometry(200, 150, 100, 40) 
  
        # setting background color to push button when mouse hover over it 
        button.setStyleSheet("QPushButton::hover"
                             "{"
                             "background-color : lightgreen;"
                             "}") 
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 