Python is an open-source and beginner-friendly programming language. Ubuntu 16.04 and Ubuntu 16.10 come with two versions of Python, Python 2.7 and Python 3.5. At the time of this writing, the latest stable version of Python is 3.6, released on December 23rd, 2016. If you need to use python3 as part of Python application dependency, there are several ways to install python3 on Ubuntu 16.04 LTS.
This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Python 3 on a Ubuntu 16.04 (Xenial Xerus) server.
Install Python 3 on Ubuntu 16.04 LTS
Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.
sudo apt-get update sudo apt-get upgrade
Step 2. Installing Python 3.
Method 1. Install Python 3.6 on Ubuntu 16.04 from PPA.
You can install Python 3.6 on Ubuntu 16.04 using this PPA:
sudo add-apt-repository ppa:jonathonf/python-3.6 sudo apt update sudo apt install python3.6
You can check python version on Ubuntu from command line:
python --version
Method 2. Installing Python 3.6 on Ubuntu 16.10 from Repository
Use the following command to install Python 3:
sudo apt update sudo apt install python3.6
Then check the Python version:
python3.6 -V
Method 3. Compile and Install Python 3.6 on Ubuntu 16.04
First, we need to install some build dependencies using the commands below:
sudo apt install build-essential checkinstall sudo apt install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev
Then, download Python 3.6 from source:
wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tar.xz tar xvf Python-3.6.0.tar.xz
Now cd into the source directory, configure the build environment and install:
cd Python-3.6.0/ ./configure sudo make altinstall
Once the process is complete, we can check the version of Python 3 that is installed in the system by typing:
python3.6
Congratulation’s! You have successfully installed Python. Thanks for using this tutorial for installing Python 3 on Ubuntu 16.04 LTS (Xenial Xerus) system. For additional help or useful information, we recommend you to check the official Python web site.