How To Install Python3 On Centos

The CentOS vii Linux distribution includes Python ii by default. However, Python two is going to attain EOL on Jan i, 2022. While some legacy applications might require admission to Python ii for various reasons, it's vitally important to kick start new projects in Python 3.

In this tutorial, we are going to take a wait at how to become upward and running with Python three on a CentOS seven server. Specifically, nosotros will take a look at how to install Python 3 via the CentOS vii packet manager Yum too every bit from source.

Pre-flight Check

• These instructions are beingness performed on a Liquid Web Self-Managed Dedicated CentOS 7 server as the root user.
• These instructions assume that your server has CentOS release 7.seven.
• We also have an awesome article on managing multiple versions of Python via Anaconda

Yum Installation

In CentOS 7 releases prior to 7.7, it was necessary to make Python iii available for installation past setting upwards third-political party repositories, such as the IUS repository, because the CentOS base of operations repository did non provide a Python three package. Thankfully, as of CentOS 7.7, Python three is available in the base package repository!

Step 1: Update the environment

In order to make sure that we are working with the most up to engagement environment possible in terms of our packages, we tin can run the following control.

            [root@centos7 ~]# yum update -y          

Step 2: Install Python 3

Now that the environment is upwardly to appointment, all nosotros need do to install Python 3 is run the post-obit command.

            [root@centos7 ~]# yum install -y python3          

That'due south it! Python 3 is now installed! Another helpful thought to consider is that PIP, the Python package managing director for Python 3, is installed alongside the Python 3 package, and so nosotros don't have to worry almost that equally an additional installation step.

Verify Installation

In order to ensure that Python 3 is in fact installed and usable, we can drib into a Python 3 shell by running the following command.

            [root@centos7 ~]# python3 Python 3.6.viii (default, Aug  7 2022, 17:28:10)  [GCC 4.8.5 20220623 (Ruddy Hat 4.eight.five-39)] on linux Type "assistance", "copyright", "credits" or "license" for more data. >>>                      

You should see the version of Python 3 installed on your organisation also as a alter in the command prompt characters.

Source Installation

Installing Python 3 via the Yum package manager is past far the simplest way to get the job done. However, in some cases, you might desire to take the almost contempo version of Python available and that's where a source installation can come in handy.

Step 1: Setup the Environment

In order to install Python 3 from source, nosotros are going to demand to ensure that some prerequisite packages are installed on our system.

            [root@centos7 ~]# yum install gcc openssl-devel bzip2-devel libffi-devel -y          

Step 2: Download Python

Next, we demand to grab the version of Python we want. The following command will pull down the latest stable version of Python 3.8 as of the writing of this article.

            [root@centos7 ~]# curlicue -O https://www.python.org/ftp/python/3.8.1/Python-3.8.1.tgz          

Now we need to extract the file.

            [root@centos7 ~]# tar -xzf Python-3.8.one.tgz          

Pace 3: Install Python 3

At present that it's extracted, let's change into the resultant directory.

            [root@centos7 ~]# cd Python-3.eight.i/          

Adjacent, we demand to prepare to compile Python from source.

            [root@centos7 Python-3.8.1]# ./configure --enable-optimizations          

Finally, we are going to use the following command to end off the installation, without replacing the default system Python on our system.

            [root@centos7 Python-3.8.1]# make altinstall          

Compiling code from source takes a little while, but in one case that's finished, nosotros can exam out our new Python 3 version by running the following command.

            [root@centos7 Python-3.8.1]# python3.viii          

Much like before when we installed Python three.six via Yum, we are dropped into a Python shell that outputs the version nosotros are currently using.

            Python 3.eight.1 (default, Dec 27 2022, 17:12:30) [GCC 4.8.five 20220623 (Crimson Hat 4.8.five-39)] on linux Type "help", "copyright", "credits" or "license" for more data. >>>          

Terminal Thoughts

Python has seen a continuous upward growth tendency in the 21st century due to its flexibility in addressing both frontend and backend development goals. It also continues to provide, a strong cross-platform functionality when utilizing server clustering, forth with the vast corporeality of available tools and libraries available that reduces the effort needed to write lawmaking and functions. Additionally, it has 1 of the industries' strongest support community structures which ensures its continued success.

Because Python provides for the latest technologies with its constant growth and development in the field of Machine Learning and AI, nosotros expect to see these advances continue to increase in the coming years.

How Can Nosotros Assist?

Liquid Web delivers many of the newest engineering private cloud hosting options that tin permit yous to take advantage of the latest methods and processes to abound your business organization well into the 21st century and beyond!

Give u.s.a. a call at 800.580.4985, or open a chat or ticket with united states to speak with one of our knowledgeable Solutions or Experienced Hosting advisors to learn how you can apply these tools and techniques today!

Source: https://www.liquidweb.com/kb/how-to-install-python-3-on-centos-7/

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