daemonize is a library for writing system daemons in Python. It is distributed under MIT license. Latest version can be downloaded from PyPI. Full documentation can be found at ReadTheDocs.
It is tested under following Python versions:
- 2.6
- 2.7
- 3.3
- 3.4
- 3.5
You can install it from Python Package Index (PyPI):
$ pip install daemonizefrom time import sleep
from daemonize import Daemonize
pid = "/tmp/test.pid"
def main():
while True:
sleep(5)
daemon = Daemonize(app="test_app", pid=pid, action=main)
daemon.start()Daemonize object's constructor understands the optional argument keep_fds which contains a list of FDs which should not be closed. For example:
import logging
from daemonize import Daemonize
pid = "/tmp/test.pid"
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
logger.propagate = False
fh = logging.FileHandler("/tmp/test.log", "w")
fh.setLevel(logging.DEBUG)
logger.addHandler(fh)
keep_fds = [fh.stream.fileno()]
def main():
logger.debug("Test")
daemon = Daemonize(app="test_app", pid=pid, action=main, keep_fds=keep_fds)
daemon.start()
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