PyQt5 QCalendarWidget – Checking if its has focus or not

In this article we will see how we can check if the QCalendarWidget has focus or not. Focus is basically the input focus, by default it don’t have focus but when app get executed mouse clicked on it, it get the focus but when mouse click on other widget its focus will get shifted.

In order to do this we will use hasFocus method with the QCalendarWidget object.
Syntax : calendar.hasFocus()
Argument : It takes no argument
Return : It return bool 

Implementation Steps :
1. Create a main window 
2. Create a Calendar widget 
3. Create a line edit widget at different position 
4. Create a label to show the focus status 
5. Create QTimer object that call the action after every 200 milliseconds 
6. Inside the timer action check for the calendar focus
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, 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 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)

        # checking edit focus
        value = self.calendar.hasFocus()

        # setting text to the label
        self.label.setText("Has Focus : " + str(value))

        # creating a timer object
        timer = QTimer(self)
        timer.timeout.connect(self.show_time)
        timer.start(200)

        # creating a line edit
        line = QLineEdit(self)

        # setting geometry to the line edit
        line.setGeometry(500, 100, 100, 40)

    # method called by the timer
    def show_time(self):

        # checking focus
        value = str(self.calendar.hasFocus())

        # setting text through label
        self.label.setText("Has Focus : " + value)





# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

Output :