LinuxQuestions.org - Python's IDLE content assist not working in 12.2

While running IDLE on Slackware 12.2 when attempting to use content assist (by typing CTRL+Space) I get a bunch of exceptions in a console window, given IDLE was launched via command line.
Only 12.2 version is affected, 12.1 is not affected.

Did anyone experience the same problem?
Does anyone have a solution how to fix that?

There is the part of trace:

Code:

Exception in Tkinter callback

Traceback (most recent call last):

  File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1403, in __call__

    return self.func(*args)

  File "/usr/lib/python2.5/idlelib/AutoCompleteWindow.py", line 218, in winconfig_event

    x, y, cx, cy = self.widget.bbox(self.startindex)

  File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 2833, in bbox

    self.tk.call((self._w, 'bbox') + args)) or None

  File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1030, in _getints

    return tuple(map(getint, self.tk.splitlist(string)))

ValueError: invalid literal for int() with base 10: '(111,'

Thank you.
Alex