How To Install NumPy on Ubuntu 20.04 LTS

In this tutorial, we will show you how to install NumPy on Ubuntu 20.04 LTS. For those of you who didn’t know, NumPy (Numerical Python) is an open-source library for the Python programming language. It is used for scientific computing and working with arrays. It offers the following and much more.

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 of the NumPy on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

Prerequisites

• A server running one of the following operating systems: Ubuntu 20.04, 18.04, and any other Debian-based distribution like Linux Mint or elementary OS.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install NumPy on Ubuntu 20.04 LTS Focal Fossa

Step 1. First, make sure that all your system packages are up-to-date by running the following apt commands in the terminal.

sudo apt update
sudo apt upgrade

Step 2. Installing Pip Python on Ubuntu 20.04.

• Installing pip for Python 3.

To install Pip for Python 3, run the following command:

sudo apt install python3-pip

Verify the installation:

pip3 --version

• Installing pip for Python 2.

To install Python Pip for Python 2, run the following command:

sudo add-apt-repository universe
sudo apt update 
sudo apt install python2

Verify the installation by printing the pip version number:

pip2 --version

Step 3. Installing Lynis on Ubuntu 20.04.

The pip utility helps to install NumPy for both versions of Python:

### Python 2 ###
python2 -m pip install numpy

### Python 3 ###
python3.9 -m pip install numpy

Verify the installation:

### Python 2 ###
python2 -m pip show numpy

### Python 3 ###
python3.9 -m pip show numpy

If you already have NumPy and want to upgrade to the latest version, for Pip use the command below:

### Python 2 ###
pip2 install --upgrade numpy

### Python 3 ###
pip3 install --upgrade numpy

Congratulations! You have successfully installed NumPy. Thanks for using this tutorial for installing the NumPy Python on Ubuntu 20.04 LTS Focal Fossa system. For additional help or useful information, we recommend you check the official NumPy website.