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Lightweight and no-nonsense POSIX daemon library for Python (2.x.x/3.x.x)

Project description

#Daemonator (0.3.1)
Lightweight and no-nonsense POSIX daemon library. Extensible, complete with process forking and [PID][4] management.

Inspired by [Sander Marechal][2].

##License
MIT/X11 - See [LICENSE][1]

##Getting Started

**Installation**

# git clone https://github.com/flaviocpontes/daemon-py.git
# cd daemon-py/
# python setup.py install

*Note: Daemon-Python, as of version 0.2, has only been tested on Linux. The setup.py script will automatically detect if the underlying platform is compatible, as well as determine the appropriate version of Python.*

1. **Instantiation**

import daemon
class MyDaemon(daemon.Daemon):
"""Subclass Daemon-Python."""
...
def run(self):
"""Define what to daemonize by implementing the run() method."""
...

2. **Implementing control**

Finally, we want to be able to control our daemon.

...
if __name__ == "__main__":
daemon = MyDaemon('/tmp/mydaemon.pid') #Define a pidfile location (typically located in /tmp or /var/run)
if len(sys.argv) == 2:
if 'start' == sys.argv[1]:
daemon.start()
elif 'stop' == sys.argv[1]:
daemon.stop()
elif 'restart' == sys.argv[1]:
daemon.restart()
elif 'status' == sys.argv[1]:
daemon.status()
else:
sys.stdout.write("Unknown command\n")
sys.exit(2)
sys.exit(0)
else:
sys.stdout.write("Usage: %s start|stop|restart|status\n" % sys.argv[0])
sys.exit(2)

For a complete basic implementation, see [src/test.py][3]

[1]: https://github.com/stackd/daemon-py/blob/master/LICENSE
[2]: http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/
[3]: https://github.com/stackd/daemon-py/blob/master/src/test.py
[4]: http://en.wikipedia.org/wiki/Process_identifier

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