How To Install python3-daemon on Ubuntu 18.04
Introduction
In this tutorial we learn how to install python3-daemon
on Ubuntu 18.04.
What is python3-daemon
python3-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 3.
There are three methods to install python3-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 python3-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 python3-daemon
using apt-get
by running the following command:
sudo apt-get -y install python3-daemon
Install python3-daemon Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install python3-daemon
using apt
by running the following command:
sudo apt -y install python3-daemon
Install python3-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 python3-daemon
using aptitude
by running the following command:
sudo aptitude -y install python3-daemon
How To Uninstall python3-daemon on Ubuntu 18.04
To uninstall only the python3-daemon
package we can use the following command:
sudo apt-get remove python3-daemon
Uninstall python3-daemon And Its Dependencies
To uninstall python3-daemon
and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove python3-daemon
Remove python3-daemon Configurations and Data
To remove python3-daemon
configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge python3-daemon
Remove python3-daemon configuration, data, and all of its dependencies
We can use the following command to remove python3-daemon
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge python3-daemon
References
Summary
In this tutorial we learn how to install python3-daemon
package on Ubuntu 18.04 using different package management tools: apt
, apt-get
and aptitude
.