PyQt5 QCalendarWidget – Setting Leave Event

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In this article we will see how we can implement the leave event for the QCalendarWidget. A leave event is sent to the calendar when the mouse cursor leaves the calendar. This event handler can be reimplemented in a subclass to receive calendar leave events which are passed in the event parameter.

Below is the Calendar class code

# QCalendarWidget Class
class Calendar(QCalendarWidget):
    
    # constructor
    def __init__(self, parent=None):
        super(Calendar, self).__init__(parent)

    # overriding the leave event
    def leaveEvent(self, event):

        # setting to the text to the label
        window.label.setText("Leave Event Take place")

Implementation steps:
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the leaveEvent and inside the event set the text to the label
3. Create a main window class
4. Create a Calendar object inside the main window
5. Set various properties to the calendar

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 
 
# QCalendarWidget Class 
class Calendar(QCalendarWidget): 
    def __init__(self, parent = None): 
        super(Calendar, self).__init__(parent) 
 
    # overriding the leave event 
    def leaveEvent(self, event): 
 
        # setting to the text to the label 
        window.label.setText("Leave Event Take place") 
 
 
class Window(QMainWindow): 
 
    def __init__(self): 
        super().__init__() 
 
        # setting title 
        self.setWindowTitle("Python ") 
 
        # setting geometry 
        self.setGeometry(100, 100, 650, 400) 
 
        # calling method 
        self.UiComponents() 
 
        # showing all the widgets 
        self.show() 
 
    # method for components 
    def UiComponents(self): 
 
        # creating a QCalendarWidget object 
        # as Calendar class inherits QCalendarWidget 
        self.calendar = Calendar(self) 
 
        # setting geometry to the calendar 
        self.calendar.setGeometry(50, 10, 400, 250) 
 
        # setting cursor 
        self.calendar.setCursor(Qt.PointingHandCursor) 
 
 
        # creating label to show the properties 
        self.label = QLabel(self) 
 
        # setting geometry to the label 
        self.label.setGeometry(100, 280, 250, 60) 
 
        # making label multi line 
        self.label.setWordWrap(True) 
 
        # setting text to the label 
        self.label.setText("No Event") 
 
 
# create pyqt5 app 
App = QApplication(sys.argv) 
 
# create the instance of our Window 
window = Window() 
 
# start the app 
sys.exit(App.exec()) 