The PyQt5.QtWidgets.QApplication class is a fundamental component of PyQt5, which provides functionality for creating and managing the application's event loop. It acts as the main event handler and system for handling user input, such as mouse and keyboard events, and distributing them to the appropriate widgets within the PyQt5 application. The QApplication class also manages the application's state, process initialization, system settings, and provides various utility functions. It serves as a base class for creating PyQt5 applications with a graphical user interface and plays a crucial role in initializing and executing the application.
Python QApplication - 60 examples found. These are the top rated real world Python examples of PyQt5.QtWidgets.QApplication extracted from open source projects. You can rate examples to help us improve the quality of examples.