Killing a subprocess including its children from python [duplicate]

Answer 1

To handle the general problem:

p=subprocess.Popen(your_command, preexec_fn=os.setsid)
os.killpg(os.getpgid(p.pid), signal.SIGTERM)

setsid will run the program in a new session, thus assigning a new process group to it and its children. calling os.killpg on it thus won't bring down your own python process also.