How To Install python-png on Ubuntu 18.04
Introduction
In this tutorial we learn how to install python-png on Ubuntu 18.04.
What is python-png
python-png is:
The PyPNG module implements support for PNG images. It reads and writes PNG files with all allowable bit depths (1/2/4/8/16/24/32/48/64 bits per pixel) and colour combinations: greyscale (1/2/4/8/16 bit); RGB, RGBA, LA (greyscale with alpha) with 8/16 bits per channel; colour mapped images (1/2/4/8 bit). Adam7 interlacing is supported for reading and writing. A number of optional chunks can be specified (when writing) and understood (when reading): tRNS, bKGD, gAMA.
PyPNG is not a high level toolkit for image processing (like PIL) and does not aim at being a replacement or competitor. Its strength lies in fine-grained extensive support of PNG features. It can also read and write Netpbm PAM files, with a focus on its use as an intermediate format for implementing custom PNG processing.
This package contains the Python 2 version.
There are three methods to install python-png 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-png 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-png using apt-get by running the following command:
sudo apt-get -y install python-png
Install python-png Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install python-png using apt by running the following command:
sudo apt -y install python-png
Install python-png 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-png using aptitude by running the following command:
sudo aptitude -y install python-png
How To Uninstall python-png on Ubuntu 18.04
To uninstall only the python-png package we can use the following command:
sudo apt-get remove python-png
Uninstall python-png And Its Dependencies
To uninstall python-png and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove python-png
Remove python-png Configurations and Data
To remove python-png configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge python-png
Remove python-png configuration, data, and all of its dependencies
We can use the following command to remove python-png configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge python-png
References
Summary
In this tutorial we learn how to install python-png package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
