First Process Of Python Popen Pipe Can't Be Killed

I am using this code p1 = Popen(['rtmpdump'] + cmd_args.split(' '), stdout=PIPE) p2 = Popen(player_cmd.split(' '), stdin=p1.stdout, stderr=PIPE) p2.wait() # try to kill rtmpdump #

Solution 1:

Here is the fix. call wait() after kill() to really kill the zombie process

# kill the zombie rtmpdump
try:
  p1.kill()
  p1.wait()
except AttributeError:
    # if we use python 2.5
    from signal import SIGKILL
    from os import kill, waitpid
    kill(p1.pid, SIGKILL)
    waitpid(p1.pid, 0)