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Update Database Record With Treeview - Python Tkinter GUI Tutorial #176. In this video I'll show you how to update or edit a database record with our treeview. We can already update or edit a record in the treeview widget itself, but the app doesn't currently save that change to the database itself. So in this video I'll show you how to. 8.5 reference: a GUI for Python. 14. The Listbox widget. The purpose of a listbox widget is to display a set of lines of text. Generally they are intended to allow the user to select one or more items from a list. All the lines of text use the same font. If you need something more like a text editor, see Section 24, "The Text widget". The button command function is used to invoke the message box to display the random value. tkinter.Radiobutton - Radiobutton widget which shows only one of several buttons in on-state. tkinter.Scale - Scale widget which can display a numerical scale. tkinter.Scrollbar - Scrollbar widget which displays a slider at a certain position. tkinter.