Creating Daemon process

daemonpy is package for creating Daemon processes.

Developed in python code: 100%.

The README is used to introduce the modules and provide instructions on how to install the modules, any machine dependencies it may have and any other information that should be provided before the modules are installed.

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Installation

daemonpy python3 build

Navigate to release page download and extract release archive.

To install daemonpy run

tar xvzf daemonpy-x.y.z.tar.gz
cd daemonpy-x.y.z
# python3
pip3 install -r requirements.txt
python3 -m build
pip3 install dist/daemonpy-x.y.z-py3-none-any.whl

Or type the following

tar xvzf daemonpy-x.y.z.tar.gz
cd daemonpy-x.y.z/
# pyton3
pip3 install -r requirements.txt
python3 setup.py install_lib
python3 setup.py install_egg_info

You can use Docker to create image/container, or You can use pip to install

# python3
pip3 install daemonpy

Usage

Create short example

#!/usr/bin/env python

'''
Module
    mydaemon.py
Copyright
    Copyright (C) 2020 - 2024 Vladimir Roncevic <elektron.ronca@gmail.com>
    mydaemon is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    mydaemon is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    See the GNU General Public License for more details.
    You should have received a copy of the GNU General Public License along
    with this program. If not, see <http://www.gnu.org/licenses/>.
Info
    Defines class MyDaemon with attribute(s) and method(s).
    Sets an operation for Daemon process.
'''

import sys
from time import sleep

try:
    from daemonpy import Daemon
except ImportError as ats_error_message:
    # Force close python ATS ##################################################
    sys.exit(f'\n{__file__}\n{ats_error_message}\n')


class MyDaemon(Daemon):
    '''
        Defines class MyDaemon with attribute(s) and method(s).
        Sets an operation for Daemon process.

        It defines:

            :attributes:
                | None
            :methods:
                | run - Runs Daemon process (defined method).
    '''
    def run(self):
        '''
            Runs Daemon process with time sleep example.

            :exceptions: None
        '''
        while True:
            sleep(1)

if __name__ == '__main__':
    DAEMON = MyDaemon('/tmp/daemon-example.pid')
    DAEMON.usage(sys.argv[1])

Dependencies

daemonpy requires next modules and libraries

Package structure

daemonpy is based on OOP.

Package structure

daemonpy/
    ├── daemon_usage.py
    ├── file_descriptor.py
    ├── file_process_id.py
    ├── __init__.py
    └── unix_operations.py

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