Ravi Kondamuru wrote:
Hi,
I am trying to write a python cgi script, that invokes another process
and exists.
Using the subprocess documentation on NO_WAIT, I am not having much success:
pid = os.spawnlp(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg")
==>
pid = Popen(["/bin/mycmd", "myarg"]).pid
The script seems to wait for the new process to exit before returning to
the user.
I tried doing the double-fork approach discussed here:
http://code.activestate.com/recipes/66012/
Are you on some kind of Unix box here? The fork approach should
definitely work for you. An even simpler example, which should still
work for you, is here:
========================
import os , time , sys
print 'hello before the fork'
if os.fork():
print 'parent exiting'
sys.exit()
print 'hello from child: %d' % os.getpid()
time.sleep(30)
os._exit(0)
========================
You should be able to verify that you have that process still running
after the main process exits.
--
Jay Deiman
\033:wq!
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