'Return gridded labeled Entry.'

def make_entry(self, label, var):

    l = Label(self.top, text=label)
    l.grid(row=self.row, column=0, sticky='nw')
    e = Entry(self.top, textvariable=var, exportselection=0)
    e.grid(row=self.row, column=1, sticky='nwe')
    self.row = (self.row + 1)
    return e
