try/finally in threads

[George Sakkis]

On Jul 3, 5:05 am, "Diez B. Roggisch" <d... at nospam.web.de> wrote:

> George Sakkis wrote:
> > I posted this on the Pyro list but I'm not sure if it's related
> > specifically to Pyro. The "finally" clause below is not executed when
> > f() runs on on a (daemon) thread and the program exits. DAEMON here is
> > a global Pyro.code.Daemon instance.
>
> > def f():
> >    try: DAEMON.requestLoop()
> >    finally:
> >        # nothing is printed if f() runs in a thread
> >        print "i am here!!"
> >        DAEMON.shutdown()
> >        print "i am over!!"
>
> > Is "finally" not guaranteed to be executed in a non-main thread or is
> > there something else going on ?
>
> Well, that's pretty much the idea behind daemon threads - that they are
> terminated immediately. If it were otherwise, a little endless-loop in that
> finally-statement of yours would cause the program termination to hang
> endlessly.

Thanks, that makes sense; if the thread is non-daemon, it enters the
finally block as expected.

George