On Jan 10, 2008, at 12:41 AM, Allen Fowler wrote:
> Hello,
>
> How can a make a python script run in "deamon mode"? (on a linux box)
>
> That is, I want to run the program via "python myfile.py" and have
> it drop me back to the command line. The program should continue
> running until I kill it via it's PID, the machine shuts down, or
> the program itself decides to shutdown. It should _not_ die when
> I simply log-out, etc.
>
> Is there a standard library module to help with this?
Something I have thrown into scripts to daemonize them. NOTE: this is
probably not the `best` way. but it works...
import os
import sys
def daemonize():
"""Become a daemon, seperate from the terminal and redirect IO"""
if os.fork(): os._exit(0)
os.setuid(1) # set user to daemon
os.setsid()
sys.stdin = sys.__stdin__ = open('/dev/null','r')
sys.stdout = sys.__stdout__ = open('/dev/null','w')
sys.stdout = sys.__stderr__ = sys.stdout
Then when you start your program in say main()
call daemonize()
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