On Oct 13, 11:45 am, Paul Rubin <http://[EMAIL PROTECTED]> wrote: > I'm trying to run a command on a remote host, something like: > > result = os.popen('ssh otherhost mycommand').read() > > It is possible that the other host is down, in which case the ssh > command hangs, so I want my script to time out if this happens: > > def timeout(*x): > raise IOError, 'timeout' > signal(SIGALRM, timeout) > alarm(20) > > result = os.popen('ssh otherhost mycommand').read() > > I would expect the above to raise IOError if the ssh doesn't return > within 20 seconds, but it seems to hang when the other host is down, > until eventually the tcp connection times out after something like 5 > minutes (which is much longer than I want to wait). > > Anyone know if os.popen somehow pre-empts the alarm signal? If it > does, I'd consider that a bug. > > Thanks > --Paul
Using some Google-Fu, I found this post: http://mail.python.org/pipermail/python-list/2003-August/217530.html It's old, but it looks ok... Mike -- http://mail.python.org/mailman/listinfo/python-list
