Python child process doesn't seem to function

Question

I run this python file to spawn a process:

import os
import pwd
import subprocess
import sys


p = subprocess.Popen(['python', 'process_script.py'],
                     cwd="/execute",
                     stdout=subprocess.PIPE,
                     stderr=subprocess.STDOUT)

process_script.py looks like this:

import time
import random
import string
import helper

#

def run():
    while True:
        filename = "/execute/" + "".join([random.choice(string.ascii_letters) for j in range(8)]) + ".txt"

        helper.execute(f"echo foo > {filename}")

        time.sleep(10)

#

run()

[EDIT] In fact ps shows no other processess, so it looks like the thread terminates... but how and why?

If I run process_script.py directly, the files are created.

score 2 · Accepted Answer · answered Oct 16 '20 at 21:16

2

in Popen child process dies when the parent exits you can add p.wait() at the end of your first script to prevent parent from exiting. also this link is useful check it out! subprocess gets killed even with nohup

answered Oct 16 '20 at 21:16

badger

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Is it possible to keep that process open even when the parent is killed? – Omroth Oct 18 '20 at 07:40
in the provided link, they discussed on this usecase – badger Oct 18 '20 at 11:47

Python child process doesn't seem to function

1 Answers1