Python script as linux service/daemon

Question

Hallo,

I\'m trying to let a python script run as service (daemon) on (ubuntu) linux.

On the web there exist several solutions like:

http://pypi.pytho

Answer 1

Rloton's answer is good. Here is a light refinement, just because I spent a ton of time debugging. And I need to do a new answer so I can format properly.

A couple other points that took me forever to debug:

1. When it fails, first check /var/log/upstart/.log
2. If your script implements a daemon with python-daemon, you do NOT use the 'expect daemon' stanza. Having no 'expect' works. I don't know why. (If anyone knows why - please post!)
3. Also, keep checking "initctl status script" to make sure you are up (start/running). (and do a reload when you update your conf file)

Here is my version:

description "My service"
author  "Some Dude "

env PYTHON_HOME=/
env PATH=$PYTHON_HOME:$PATH

start on runlevel [2345]
stop on runlevel [016]

chdir 

# NO expect stanza if your script uses python-daemon
exec $PYTHON_HOME/bin/python script.py

# Only turn on respawn after you've debugged getting it to start and stop properly
respawn