How To Install NumPy on Ubuntu 20.04

In this article, we want to teach you How To Install NumPy on Ubuntu 20.04.

NumPy which stands for Numerical Python is a free and open-source Python library used for working with arrays. It also has functions for working in the domain of linear algebra, Fourier transform, and matrices.

How To Install NumPy on Ubuntu 20.04

Before you start to install NumPy on Ubuntu 20.04, you need to log in to your server as a non-root user with sudo privileges. To do this you can check our article about the Initial server setup with Ubuntu 20.04.

When you are done with this requirement, you can start to install NumPy on your server in different ways.

Install NumPy from the Ubuntu repository

Numpy is available in the Ubuntu default repository by default. You can choose to use Python 2 or Python 3. Also, you may want to choose both. To install NumPy on ubuntu 20.04 run the following command:

PYTHON 2:
sudo apt install python-numpy

PYTHON 3:
sudo apt install python3-numpy

Now you need to verify the installation by checking the NumPy version with the following command:

python3 -c "import numpy; print(numpy.__version__)"

In your output you will see:

Output
1.17.4

Also, you can install it by using pip or pip3.

Install NumPy with pip/pip3

First of all, you need to install PIP with the following command:

PYTHON 2:
sudo apt install python-pip

PYTHON 3:
udo apt install python3-pip

Then, you need to verify the installation by checking the pip or pip 3 versions with the following command:

pip3 --version

In your output you will see something similar to this:

Output
pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)

Here you can easily use pip or pip 3 to install NumPy with the following command:

PYTHON 2:
pip install numpy

PYTHON 3:
pip3 install numpy

Now you need to confirm the installation by checking the NumPy version on Ubuntu 20.04 with the following command:

python3 -c "import numpy; print(numpy.__version__)"

Your output should similar to this:

Output
1.17.4

At this point, you need to upgrade NumPy on Ubuntu 20.04 to the latest version. To do this run the following command:

PYTHON 2:
pip install --upgrade numpy

PYTHON 3:
pip3 install --upgrade numpy

In your output you will see:

Output
Installing collected packages: numpy
Attempting uninstall: numpy
Found existing installation: numpy 1.17.4
Not uninstalling numpy at /usr/lib/python3/dist-packages, outside environment /usr
Can't uninstall 'numpy'. No files were found to uninstall.
Successfully installed numpy-1.21.2