Run background process in Python and do NOT wait

Question

My goal is simple: kick off rsync and DO NOT WAIT.

Python 2.7.9 on Debian

Sample code:

rsync_cmd = \"/usr/bin/rsync -a -e \'ssh -i /home/myus         


        

Answer 1

I encountered a similar issue while working with qnx devices and wanted a sub-process that runs independently of the main process and even runs after the main process terminates. Here's the solution I found that actually works 'creationflags=subprocess.DETACHED_PROCESS':

import subprocess
import time

pid = subprocess.Popen(["python", "path_to_script\turn_ecu_on.py"], creationflags=subprocess.DETACHED_PROCESS)

time.sleep(15)
print("Done")

Link to the doc: https://docs.python.org/3/library/subprocess.html#subprocess.Popen