How To Install python-daemon on Ubuntu 18.04
Introduction
In this tutorial we learn how to install python-daemon on Ubuntu 18.04.
What is python-daemon
python-daemon is:
‘daemon’ is a library that assists a Python program to turn itself into a well-behaved Unix daemon process, as specified in PEP 3143.
This library provides a ‘DaemonContext’ class that manages the following important tasks for becoming a daemon process:
- Detach the process into its own process group.
- Set process environment appropriate for running inside a chroot.
- Renounce suid and sgid privileges.
- Close all open file descriptors.
- Change the working directory, uid, gid, and umask.
- Set appropriate signal handlers.
- Open new file descriptors for stdin, stdout, and stderr.
- Manage a specified PID lock file.
- Register cleanup functions for at-exit processing.
This package installs the library for Python 2.
There are three methods to install python-daemon on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install python-daemon Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install python-daemon using apt-get by running the following command:
sudo apt-get -y install python-daemon
Install python-daemon Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install python-daemon using apt by running the following command:
sudo apt -y install python-daemon
Install python-daemon Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install python-daemon using aptitude by running the following command:
sudo aptitude -y install python-daemon
How To Uninstall python-daemon on Ubuntu 18.04
To uninstall only the python-daemon package we can use the following command:
sudo apt-get remove python-daemon
Uninstall python-daemon And Its Dependencies
To uninstall python-daemon and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove python-daemon
Remove python-daemon Configurations and Data
To remove python-daemon configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge python-daemon
Remove python-daemon configuration, data, and all of its dependencies
We can use the following command to remove python-daemon configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge python-daemon
References
Summary
In this tutorial we learn how to install python-daemon package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
