Tkinter.Text.edit_modified() TypeError

[Michael Spencer]

Using: 
Python 2.3.3
Tkinter.TclVersion = 8.4000000000000004
Windows XP

Calling edit_modified() on a Tkinter.Text object raises TypeError when
it gets a Boolean True response.

Exception in Tkinter callback
Traceback (most recent call last):
  File "D:\Python23\lib\lib-tk\Tkinter.py", line 1345, in __call__
    return self.func(*args)
  File "\\Cc1040907-a\c$\Documents and Settings\Michael\My
Documents\PyDev\GUI\T
Egui.py", line 64, in <lambda>
    command = lambda tag = maketag(i), label =
label:menudispatch(label,tag))
  File "\\Cc1040907-a\c$\Documents and Settings\Michael\My
Documents\PyDev\GUI\T
Egui.py", line 27, in menudispatch
    return func()
  File "\\Cc1040907-a\c$\Documents and Settings\Michael\My
Documents\PyDev\GUI\T
Egui.py", line 49, in handle_File_Close
    if tbx1.edit("modified"):
  File "D:\Python23\lib\lib-tk\Tkinter.py", line 2819, in edit
    return self._getints(
  File "D:\Python23\lib\lib-tk\Tkinter.py", line 972, in _getints
    return tuple(map(getint, self.tk.splitlist(string)))
TypeError: coercing to Unicode: need string or buffer, bool found