PyQt5 – Changing background color of Label when hover

In this article we will see how to change the background color of the label when cursor will hover over it. When cursor will come upon the label it will change color to it and when cursor is not over the label, it goes back to it default color. In order to do this we have to change the style sheet code which is used with the label object, and have to set background color when mouse hover over it, below is the style sheet code.

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

Below is the implementation. 

Python3

# 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 label
        label = QLabel("Hello Geeks", self)

        # setting geometry of the label
        label.setGeometry(200, 150, 100, 40)

        # setting background color to label when mouse hover over it
        label.setStyleSheet("QLabel::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())

Output :