Pyqt5 [GUI-Designing] To create a GUI for your windows and dialogs in PyQt, you can take two main paths: you can use Qt Designer , or you can hand code the GUI in plain Python code. The first path can dramatically improve your productivity, whereas the second path puts you in full control of your application’s code. GUI applications often consist of a main window and several dialogs . If you’re looking to create these graphical components in an efficient and user-friendly way, then Qt Designer is the tool for you. Getting Started With Qt Designer Qt Designer is a Qt tool that provides you with a what-you-see-is-what-you-get (WYSIWYG) user interface to create GUIs for your PyQt applications productively and efficiently. With this tool, you create GUIs by dragging and dropping QWidget objects on an empty form. After that, you can arrange them into a coherent GUI using different layout managers. Qt Designer...