Getting started with PyQt. Here we have created a single page single layout Qt5 app where it displays a label on the window.

PyQtDemo.py

'''
First you will need to install qt5 on your system,
for that you will need to do this in you terminal:
    sudo apt-get qt5-default
    and then,
    pip install sip PyQt5
'''
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *


# Create a HomePage for our Qtapp
class Home(QWidget):
    def __init__(self, parent=None):
        super(Home, self).__init__(parent)

        # Lets create a label to display in our app
        label = QLabel('Sanket Gadge')

        # Lets create a layout for our app
        layout = QVBoxLayout()

        # Add our label to this layout
        layout.addWidget(label)

        # Once we have everything set up, we have all our widgets and layouts created its time to set the layout for our app.
        self.setLayout(layout)
        # Then we give name to a window to show our widgets and layout
        self.setWindowTitle("My QT app")


# Once we have our class created its time to call it
if __name__ == '__main__':
    import sys

    # Define a name for our app
    app = QApplication(sys.argv)

    # Call the class object we have created earlier
    window = Home()
    # This line is so important cuz if you dont show() it wont show a thing.
    window.show()

    # When user wants to exit, it will raise a exit call for our app, this will run when you press the close mark(beside minimize button)in the app window
    sys.exit(app.exec_())