python: child dies when parent dies -

i want python job start process , exit, while keeping child running.

when start subprocess using

popen([sys.executable,"foo","bar"]) 

(as recommended instead of spawn), child dies when parent exits (the above popen last thing parent does).

this, of course, can remedied using nohup:

with open("/dev/null","w") fd:     popen(["nohup",sys.executable,"foo","bar"],stdout=fd) 

(i have redirect output /dev/null prevent nohup creating file nohup.out , announcing misdeed on stdout).

is there more elegant/pythonic way deal this?

i tried os.fork + signal.signal(signal.sighup,signal.sig_ign) , child still died when parent exited.