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PyQt5 QCalendarWidget – Checking if it inherits given class
  • Last Updated : 11 Jun, 2020

In this article we will see how we can check if QCalendarWidget inherits other class or not. In order to do so we use inherits property, this property returns true if the calendar object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.

Note : A class is considered to inherit itself.

In order to do this we will use inherits method with the QCalendarWidget object.

Syntax : calendar.inherits(“QObject”)

Argument : It takes string as argument i.e class name



Return : It return bool

Below is the implementation

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# 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, 650, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for components
    def UiComponents(self):
  
        # creating a QCalendarWidget object
        self.calendar = QCalendarWidget(self)
  
        # setting geometry to the calender
        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)
  
        # checking if calendar inherits QObject
        value = self.calendar.inherits("QObject")
  
        # setting text to the label
        self.label.setText("Inherits QObject  : " + str(value))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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Output :

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