Tkinter + threads = trouble?

[Roman Suzi]

Hi!

I've tried to run threaded program which uses Tkinter for GUI. (Every
graphic operation is guarded by the lock).

The program run well under Linux/X Window (and Python 2.1). But when I try
it under Windows 98 SE... It locks badly. I tracked down that it locks
when one of the threads do variable.set("value"). However, other threaded
programs could not run under IDLE. So I conclude that under Windows
threading and Tkintering are mutually exclusive!

(In fact, threading is incompatible with X win IDLE too, but with less
devastative results.)

It is kinda strange, because as I see it, threading is very useful wuth
GUI: backend does something while GUI reacts to the user's actions.

What else from Python standard library is incompatible with threads?

Sincerely yours, Roman Suzi
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