How To Install python-lazy-object-proxy on Ubuntu 18.04
Introduction
In this tutorial we learn how to install python-lazy-object-proxy on Ubuntu 18.04.
What is python-lazy-object-proxy
python-lazy-object-proxy is:
A lazy object proxy is an object that wraps a callable but defers the call until the object is actually required, and caches the result of said call.
These kinds of objects are useful in resolving various dependency issues, few examples:
Objects that need to held circular references at each other, but at different stages. To instantiate object Foo you need an instance of Bar. Instance of Bar needs an instance of Foo in some of it methods (but not at construction). Circular imports sound familiar?
Performance sensitive code. You don’t know ahead of time what you’re going to use but you don’t want to pay for allocating all the resources at the start as you usually need just few of them.
This package contains the Python 2 version of lazy-object-proxy .
There are three methods to install python-lazy-object-proxy 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-lazy-object-proxy 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-lazy-object-proxy using apt-get by running the following command:
sudo apt-get -y install python-lazy-object-proxy
Install python-lazy-object-proxy Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install python-lazy-object-proxy using apt by running the following command:
sudo apt -y install python-lazy-object-proxy
Install python-lazy-object-proxy 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-lazy-object-proxy using aptitude by running the following command:
sudo aptitude -y install python-lazy-object-proxy
How To Uninstall python-lazy-object-proxy on Ubuntu 18.04
To uninstall only the python-lazy-object-proxy package we can use the following command:
sudo apt-get remove python-lazy-object-proxy
Uninstall python-lazy-object-proxy And Its Dependencies
To uninstall python-lazy-object-proxy and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove python-lazy-object-proxy
Remove python-lazy-object-proxy Configurations and Data
To remove python-lazy-object-proxy configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge python-lazy-object-proxy
Remove python-lazy-object-proxy configuration, data, and all of its dependencies
We can use the following command to remove python-lazy-object-proxy configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge python-lazy-object-proxy
References
Summary
In this tutorial we learn how to install python-lazy-object-proxy package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
