Creating basic QtWidgets widgets

The QtWidgets module contains dozens of widgets, some simple and standard, others complex and unique. In this section, we're going to go through eight of the most common widgets and their basic usage.

Before starting this section, make a copy of your application template from Chapter 1, Getting Started with PyQt, and save it to a file called widget_demo.py. As we go through the examples, you can add them into your MainWindow.__init__() method to see how the objects work.

QWidget

QWidget is the parent class of all other widgets, so any properties and methods it has will also be available in any other widget. By itself, a QWidget object can be useful as a container for other widgets, a filler to...