Dialog boxes are the most simple and common interaction a user interface can provide. Asking for one simple input, such as a number, text, or yes/no, handles many needs of interaction with a user in simple applications.
tkinter comes with dialogs for most cases, but it might be hard to spot them all if you don't already know the library. As a pointer, all dialog boxes provided by tkinter share a very similar signature, so it's easy to make a dialog function that allows us to show them all:
The dialog box will look as shown:
The window to open a file appears as shown in the following screenshot: