Pmw.ComboBox label_text param causes error

[Tom Good]

The Pmw ComboBox sample code at:

http://pmw.sourceforge.net/doc/ComboBox.html

shows label_text as one of the possible keyword arguments to the
constructor.  However, when I use it I get the error shown below.  I'd
appreciate assistance in figuring out the problem.


PythonWin 2.1.1 (#20, Jul 26 2001, 11:38:51) [MSC 32 bit (Intel)] on
win32.
Portions Copyright 1994-2001 Mark Hammond (MarkH at ActiveState.com) -
see 'Help/About PythonWin' for further copyright information.
>>> from Tkinter import *
>>> import Pmw
>>> Pmw.version()
'0.8.5'
>>> combo = Pmw.ComboBox(None, label_text="foo")
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
  File "C:\Python21\lib\Pmw\Pmw_0_8_5\lib\PmwComboBox.py", line 139,
in __init__
    self.initialiseoptions(ComboBox)
  File "C:\Python21\lib\Pmw\Pmw_0_8_5\lib\PmwBase.py", line 557, in
initialiseoptions
    raise KeyError, text + string.join(unusedOptions, ', ') + \
KeyError: Unknown option "label_text" for ComboBox
>>>