"RuntimeError: Calling Tcl from different appartment"

[Peter Saffrey]

I am writing a multi-threaded Tkinter application. It worked fine with
Python 2.2 under Redhat 8.0, but I have recently moved across to
Debian (testing/unstable) and Python 2.3. Now I get the above error
message.

I read on this group somewhere that this is caused by calling Tk
functions from a different thread to where the interface is running.
Unfortunately, I really need to do this and cannot have all my Tk
calls within one thread. Is there a way around this? Why did it work
in 2.2 but not 2.3?

Thanks,

Peter