docstr: Simple validity check for a sensible menu item name
docstr_tok: ["Simple","validity","check","for","a","sensible","menu","item","name"]
code: def MenuOk(self):
      "Simple validity check for a sensible menu item name"
      menuOk = True
      menu = self.menu.get()
      menu.strip()
      if not menu:
          tkMessageBox.showerror(
              title="Menu Item Error",
              message="No menu item specified",
              parent=self,
          )
          self.entryMenu.focus_set()
          menuOk = False
      elif len(menu) > 30:
          tkMessageBox.showerror(
              title="Menu Item Error",
              message="Menu item too long:" "\nLimit 30 characters.",
              parent=self,
          )
          self.entryMenu.focus_set()
          menuOk = False
      return menuOk
  
file_path: catboost/contrib/tools/python/src/Lib/idlelib/configHelpSourceEdit.py
imports: import os
  import sys
  from Tkinter import *
  import tkMessageBox
  import tkFileDialog
label_desc: Use image node_id 4 for calling the GetHelpSourceDialog obj's underlying member method code with example usage: obj.MenuOk() and returns: menuOk