>> from subprocess import Popen
>> popen = Popen(["ping", "google.com"]) from time import sleep
>> sleep(100)

>> start it and kill it, the ping process lives on. Is there a way to
>> ensure that the ping process is always killed when the python process
>> is?
>> I can't use atexit, as ping then isn't killed when python is killed "in
>> the hard way"

> Calling popen.close() perhaps ?
> You basically open a pipe, which spawns a shell and the command is then
> started in there.
> So, if your program quits, the spawned shell is still alive, only the
> pipe is dead.