Python to give process id of subprocess

Asked Dec 24 '19 at 14:01

Active Dec 24 '19 at 14:22

Viewed 27 times

Im using python3 on ubuntu 18. I have a python code to run some ansible playbooks, i want my code to give me some id \ process id of the current runing process and when it is finished.

for example this code :

process = subprocess.Popen(["ansible-playbook", "-i", "hosts", "playbook.yml"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

can this release some process id and also to let me know when this proc id is finished \ closed? I looked for a way with multiprocessing and threads but it seems like it is just does not fit Thanks.

EDIT: i need the subproc ID when it start, not when subproc already done. process.pid gives ID after it is done

edited Dec 24 '19 at 14:22

asked Dec 24 '19 at 14:01

Batchen Regev

just `process.pid`. And use `process.wait()` and `process.poll() is not None` (non blocking) – Jean-François Fabre Dec 24 '19 at 14:06
@Jean-FrançoisFabre process.pid it does gives an ID but AFTER the subproc is done, i need to know it on the starting of the subprocess, and also the process.wait() process.poll() commes after it has finnished.. – Batchen Regev Dec 24 '19 at 14:19
Figurd how to use it, sorry: `while loop is True: if process.poll() is None: print("PID:", procPid) loop = False` – Batchen Regev Dec 24 '19 at 15:48
1

or `while True: if process.poll() is None: break` – Jean-François Fabre Dec 24 '19 at 16:07

Python to give process id of subprocess

0 Answers0