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daemonize
========================
.. image:: https://readthedocs.org/projects/daemonize/badge/?version=latest
:target: http://daemonize.readthedocs.org/en/latest/?badge=latest
:alt: Latest version
.. image:: https://img.shields.io/travis/thesharp/daemonize.svg
:target: http://travis-ci.org/thesharp/daemonize
:alt: Travis CI
.. image:: https://img.shields.io/pypi/dm/daemonize.svg
:target: https://pypi.python.org/pypi/daemonize
:alt: PyPI montly downloads
.. image:: https://img.shields.io/pypi/v/daemonize.svg
:target: https://pypi.python.org/pypi/daemonize
:alt: PyPI last version available
.. image:: https://img.shields.io/pypi/l/daemonize.svg
:target: https://pypi.python.org/pypi/daemonize
:alt: PyPI license
**daemonize** is a library for writing system daemons in Python. It is
distributed under MIT license. Latest version can be downloaded from
`PyPI <https://pypi.python.org/pypi/daemonize>`__. Full documentation can
be found at
`ReadTheDocs <http://daemonize.readthedocs.org/en/latest/?badge=latest>`__.
Dependencies
------------
It is tested under following Python versions:
- 2.6
- 2.7
- 3.3
- 3.4
- 3.5
Installation
------------
You can install it from Python Package Index (PyPI):
::
$ pip install daemonize
Usage
-----
.. code-block:: python
from 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()
File descriptors
----------------
Daemonize object's constructor understands the optional argument
**keep\_fds** which contains a list of FDs which should not be closed.
For example:
.. code-block:: python
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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