How To Install python-healpy on Ubuntu 18.04

In this tutorial we learn how to install python-healpy on Ubuntu 18.04. python-healpy is HEALPix representation of spherical data - Python interface

Introduction

In this tutorial we learn how to install python-healpy on Ubuntu 18.04.

What is python-healpy

python-healpy is:

HEALPix is an acronym for Hierarchical Equal Area isoLatitude Pixelization of a sphere. As suggested in the name, this pixelization produces a subdivision of a spherical surface in which each pixel covers the same surface area as every other pixel. It is commonly used to store all-sky astronomical images, most famously maps of the cosmic microwave background.

This package provides a Python wrapper around the C++ implementation of HEALPix.

There are three methods to install python-healpy 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 python-healpy Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install python-healpy using apt-get by running the following command:

sudo apt-get -y install python-healpy

Install python-healpy Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install python-healpy using apt by running the following command:

sudo apt -y install python-healpy

Install python-healpy 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 python-healpy using aptitude by running the following command:

sudo aptitude -y install python-healpy

How To Uninstall python-healpy on Ubuntu 18.04

To uninstall only the python-healpy package we can use the following command:

sudo apt-get remove python-healpy

Uninstall python-healpy And Its Dependencies

To uninstall python-healpy and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove python-healpy

Remove python-healpy Configurations and Data

To remove python-healpy configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge python-healpy

Remove python-healpy configuration, data, and all of its dependencies

We can use the following command to remove python-healpy configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge python-healpy

References

Summary

In this tutorial we learn how to install python-healpy package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.