#4 Core dump in PmwScrolledFrame?

[Joby Bett]

Hi,

I have been having trouble with PmwScrolledFrame,
when I use the scroll bar after a few seconds I get the
following error? I can't see why, I'm using Python 2.2
and Pmw 1.1 has anyone got any ideas?

Thanks

Joby

Exception in Tkinter callback
Traceback (most recent call last):

File "/opt/exp/expmake/build/pythonsrc/ins/share/lib/pyth
on2.2/lib-tk/Tkinter.py", line 1300, in __call__
return apply(self.func, args)

File "/opt/exp/expmake/build/pythonsrc/ins/share/lib/pyth
on2.2/lib-tk/Tkinter.py", line 436, in callit
apply(func, args)
File "/opt/exp/python/lib/site-
python/Pmw/Pmw_1_1/lib/PmwScrolledFrame.py", line
344, in _scrollBothNow
yview = self._getyview()
File "/opt/exp/python/lib/site-
python/Pmw/Pmw_1_1/lib/PmwScrolledFrame.py", line
296, in _getyview
frameHeight = self._frame.winfo_reqheight()

File "/opt/exp/expmake/build/pythonsrc/ins/share/lib/pyth
on2.2/lib-tk/Tkinter.py", line 696, in winfo_reqheight
return getint(
ValueError: invalid literal for int(): None
Segmentation Fault (core dumped)