SimpleDaemon 1.0.1

Provides a simple Daemon class to ease the process of forking a python application on Unix systems.

A fork of Shane Hathaway’s daemon.py script.

Features

• reads the command line

• reads a configuration file

• configures logging

• calls root-level setup code

• drops privileges

• calls user-level setup code

• detaches from the controlling terminal

• checks and writes a pidfile

Example

Writing a daemon requires creating two files, a daemon file and a configuration file with the same name.

hellodaemon.py:

import simpledaemon
import logging
import time

class HelloDaemon(simpledaemon.Daemon):
    default_conf = '/etc/hellodaemon.conf'
    section = 'hello'

    def run(self):
        while True:
            logging.info('The daemon says hello')
            time.sleep(1)

if __name__ == '__main__':
    HelloDaemon().main()

hellodaemon.conf:

[hello]
uid =
gid =
pidfile = ./hellodaemon.pid
logfile = ./hellodaemon.log
loglevel = info