import tkinter #Create the class class MilesGUI: def init(self): #Create the main window self.main_window = tkinter.Tk() #Create the frames self.gallons_frame ...

# User Info firstname = first_name_entry.get() lastname = last_name_entry.get() if firstname and lastname: title = title_combobox.get() age = age_spinbox.get ...

Code below has 1 major and 1 minor problem. Major issue is, once you push the button it visually stays pushed. Minor problem is, I run this in Cygwin. I've got an rxvt window behind the Tk window.