How To Install python3-nltk on Ubuntu 18.04

In this tutorial we learn how to install python3-nltk on Ubuntu 18.04. python3-nltk is Python3 libraries for natural language processing

Introduction

In this tutorial we learn how to install python3-nltk on Ubuntu 18.04.

What is python3-nltk

python3-nltk is:

The Natural Language Toolkit (NLTK) is a leading platform for building Python programs to work with human language data. It provides easy-to-use interfaces to over 50 corpora and lexical resources such as WordNet, along with a suite of text processing libraries for classification, tokenization, stemming, tagging, parsing, and semantic reasoning.

This package contains the modules for Python3.

There are three methods to install python3-nltk 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 python3-nltk Using apt-get

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

sudo apt-get update

After updating apt database, We can install python3-nltk using apt-get by running the following command:

sudo apt-get -y install python3-nltk

Install python3-nltk Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install python3-nltk using apt by running the following command:

sudo apt -y install python3-nltk

Install python3-nltk 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 python3-nltk using aptitude by running the following command:

sudo aptitude -y install python3-nltk

How To Uninstall python3-nltk on Ubuntu 18.04

To uninstall only the python3-nltk package we can use the following command:

sudo apt-get remove python3-nltk

Uninstall python3-nltk And Its Dependencies

To uninstall python3-nltk and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove python3-nltk

Remove python3-nltk Configurations and Data

To remove python3-nltk configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge python3-nltk

Remove python3-nltk configuration, data, and all of its dependencies

We can use the following command to remove python3-nltk configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge python3-nltk

References

Summary

In this tutorial we learn how to install python3-nltk package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.