threads and sys.exit()

[robert]

gangesmaster wrote:

> that's not a question of design. i just want a child-thread to kill the
> process. in a platform agnostic way.
> 

the clean kill is the 'KeyboardInterrupt'. your code finalizations are 
at least done corretly. thats also raised on SIGINT by default.

so thread.interrupt_main() is that thing to go for on this level - lets 
say on mid level.

killing hard (SIGKILL etc ) is low level. it should be OS-specific, as 
Python should not make itself inconsistent

a good consistent killing on high level can only be done by inter-thread 
communication - as shown in this recipe above. even if a 
KeyboardInterrupt is thrown, like with ..

#raises SystemExit inside my_thread
cq.call(sys.exit, wait=1, raise_exception=2)

.. its thrown exactly app-deterministic a callqueue.receive() time.

so you have all levels and tools available. If you really miss 
something, then I'd still say, the design question should be raised.

-robert

PS: SystemExit / sys.exit (doc: "Exit from Python"!?) is 
misleading/historic. Its in fact almost "ThreadExit".