[Python] Is the following process-killing strategy sound? [closed]

I have a python program which is called many times. In some cases I want to kill some of those instances, and any child subprocesses they might have spawned.

So what I do right now is:

import os
# Ensure we get a brand new group process id
os.setsid()
group_process_id = os.getpgid(0)
child_process = subprocess.run(
cmd,
process_group=current_pgid,
)
...


then when I want to kill that python program, I get it input its group process id, and just call os.killpg(process_group_id, signal.SIGKILL)

Is this approach sound, or would it leave zombie processes in my OS?

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