wxPython pop--up ("could not retrieve information...")

[mistersulu]

Hi all:

I'm using a wx.ListView object with a multi-threaded wxPython app.
The list is dynamically generated and accessed across two or more
threads.  In spite of the fact that I have checks to see if an item at
a given index is in the list and the entire set of logic is contained
within a try: except: block I periodically get pop-up windows stating
"Could not retrieve information for list control item X" when I try to
change or access the list items.

I searched the web and groups for similar posts but can't find any
solutions.

My question is:

Is there a setting somewhere in wxPython to either disable these pop-
up messages or a semaphore or event locking method to enable cross-
thread access to a listview object?

Thanks in advance,
sulu