class_docstr: Code stack viewer for debugger GUI.
docstr: Override base method.
docstr_tok: ["Override","base","method","."]
code: def fill_menu(self):
      "Override base method."
      menu = self.menu
      menu.add_command(
          label="Go to source line", command=self.goto_source_line
      )
      menu.add_command(
          label="Show stack frame", command=self.show_stack_frame
      )
  
imports: import bdb
  import os
  from tkinter import *
  from tkinter.ttk import Frame, Scrollbar
  from idlelib import macosx
  from idlelib.scrolledlist import ScrolledList
  from idlelib.window import ListedToplevel
label_desc: Use image node_id 4 for calling the StackViewer obj's underlying member method code with example usage: obj.fill_menu() without return types