How To Install python-ply on Ubuntu 18.04

In this tutorial we learn how to install python-ply on Ubuntu 18.04. python-ply is Lex and Yacc implementation for Python2

Introduction

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

What is python-ply

python-ply is:

PLY is yet another implementation of lex and yacc for Python. Although several other parsing tools are available for Python, there are several reasons why you might want to take a look at PLY:

  • It’s implemented entirely in Python.
  • It uses LR-parsing which is reasonably efficient and well suited for larger grammars.
  • PLY provides most of the standard lex/yacc features including support for empty productions, precedence rules, error recovery, and support for ambiguous grammars.
  • PLY is extremely easy to use and provides very extensive error checking.

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

sudo apt-get -y install python-ply

Install python-ply Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install python-ply

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

sudo aptitude -y install python-ply

How To Uninstall python-ply on Ubuntu 18.04

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

sudo apt-get remove python-ply

Uninstall python-ply And Its Dependencies

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

sudo apt-get -y autoremove python-ply

Remove python-ply Configurations and Data

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

sudo apt-get -y purge python-ply

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

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

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

References

Summary

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