What is the purpose of the QDockWidget class in PyQt5?

The QDockWidget class, a container class in PyQt5, is used to create dockable windows in the main window. It allows users to drag and dock various small windows within the main window, enabling flexible layout and interface management.

The QDockWidget class is typically used to create toolbars, output windows, property editors, and other tool windows. Users can freely adjust the position and size of these tool windows as needed. Various settings for the docked windows, such as docking position, size policy, and title bar, can be adjusted using the properties and methods of the QDockWidget class.

Overall, the QDockWidget class provides users with a convenient and flexible way to manage various tool windows in the interface, making it more user-friendly and customizable.