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from signal import SIGTERM
from sys import exit
from time import sleep
from os import *

def slow():
    fork()
    sleep(10)

def fast():
    sleep(1)

child_pids = []
#for child_func in [fast, slow, slow, fast]:
for child_func in [fast, fast]:
    pid = fork()
    if pid == 0:
        setsid()
        child_func()
        exit(0)
    else:
        print "spawned pgrp %d" % pid
        child_pids.append(pid)

(pid, status) = waitpid(-1, 0)
print "Reaped pid: %d, status: %d" % (pid, status)
for child_pid in child_pids:
    try:
        print popen('ps -e -o pid,ppid,pgid,state,command | grep -i python').read()
        print "killing pg %d" % child_pid
        killpg(child_pid, SIGTERM)
    except OSError, e:
        print "Error killing %s: %s" %(child_pid, e)

1	-
1	+	from signal import SIGTERM
2		from sys import exit
3		from time import sleep
4		from os import *
5
6		def slow():
7		fork()
8		sleep(10)
9
10		def fast():
11		sleep(1)
12
13		child_pids = []
14		#for child_func in [fast, slow, slow, fast]:
15		for child_func in [fast, fast]:
16		pid = fork()
17		if pid == 0:
18		setsid()
19		child_func()
20		exit(0)
21		else:
22		print "spawned pgrp %d" % pid
23		child_pids.append(pid)
24
25		(pid, status) = waitpid(-1, 0)
26		print "Reaped pid: %d, status: %d" % (pid, status)
27		for child_pid in child_pids:
28		try:
29		print popen('ps -e -o pid,ppid,pgid,state,command \| grep -i python').read()
30		print "killing pg %d" % child_pid
31		killpg(child_pid, SIGTERM)
32		except OSError, e:
33		print "Error killing %s: %s" %(child_pid, e)