... you are here 4 291guis and data HEAD- EX HEAD- EXThings are going great at Head- ExThe GUI system is easy to use, and by restricting the depots ... could use radio buttons and do something like this:Radiobutton(app, text = " ;First Class", value = " ;First Class").pack()Radiobutton(app, text = "Next Business Day", ... StringVars: service = StringVar()service.set(None)Radiobutton(app, text = " ;First Class", value = " ;First Class", variable = service).pack()Radiobutton(app, text = "Next...