subprocess leaves child living - comp.lang.python

Message from discussion subprocess leaves child living

Rob Wolfe

View profile

More options Jun 6 2007, 12:06 am

Newsgroups: comp.lang.python

From: Rob Wolfe <r...@smsnet.pl>

Date: Tue, 05 Jun 2007 07:06:15 -0700

Local: Wed, Jun 6 2007 12:06 am

Subject: Re: subprocess leaves child living

  Reply to author
  |
  Forward
  | Print
  | View thread
  | Show original
  | Report this message
  | Find messages by this author
  

Thomas Dybdahl Ahle wrote:
> Problem is - I can't do that when I get killed.
> Isn't it possible to open processes in such a way like terminals? If I
> kill the terminal, everything open in it will die too.

On POSIX platform you can use signals and ``os.kill`` function.
Fo example:

<code>
import os, signal
from subprocess import Popen
from time import sleep

def handler(signum, frame):
print 'Signal handler called'
raise KeyboardInterrupt

signal.signal(signal.SIGTERM, handler)

try:
popen = Popen(["ping", "google.com"])
try:
sleep(100)
except KeyboardInterrupt:
pass
finally:
if popen.poll() is None:
print "killing process: %d" % popen.pid
os.kill(popen.pid, signal.SIGTERM)
</code>

--
HTH,
Rob

Reply to author Forward