1. Creating a simple window

To create an empty window, we need two ingredients: a QApplication object and a QMainWindow object. The QApplication object manages the GUI application's control flow and main settings, while the QMainWindow object provides the framework for building an application's user interface.

from PySide6 import QtWidgets
from PySide6.QtCore import Slot


app = QtWidgets.QApplication()
window = QtWidgets.QMainWindow()
window.show()
app.exec()

The code above creates an empty window. The show() method displays the window, and the exec() method starts the application's event loop. The event loop is a loop that waits for events to happen and then dispatches them to the appropriate event handlers. Examples of events are clicking on buttons in your application or typing text into a text field. Adding the above code to the script will show an empty window:

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