How To Install python-pyparsing on Ubuntu 18.04

In this tutorial we learn how to install python-pyparsing on Ubuntu 18.04. python-pyparsing is alternative to creating and executing simple grammars - Python 2.7

Introduction

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

What is python-pyparsing

python-pyparsing is:

The parsing module is an alternative approach to creating and executing simple grammars, vs. the traditional lex/yacc approach, or the use of regular expressions. The parsing module provides a library of classes that client code uses to construct the grammar directly in Python code.

Here’s an example:

from pyparsing import Word, alphas greet = Word(alphas) + “,” + Word(alphas) + “!” hello = “Hello, World!” print hello, “->”, greet.parseString(hello)

This package contains the Python 2.7 module.

There are three methods to install python-pyparsing 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-pyparsing 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-pyparsing using apt-get by running the following command:

sudo apt-get -y install python-pyparsing

Install python-pyparsing Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install python-pyparsing

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

sudo aptitude -y install python-pyparsing

How To Uninstall python-pyparsing on Ubuntu 18.04

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

sudo apt-get remove python-pyparsing

Uninstall python-pyparsing And Its Dependencies

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

sudo apt-get -y autoremove python-pyparsing

Remove python-pyparsing Configurations and Data

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

sudo apt-get -y purge python-pyparsing

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

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

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

References

Summary

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