$ sudo apt-get update
$ sudo apt-get install python-lazr.restfulclient 

python-lazr.restfulclient is installed in your system.

Make ensure the python-lazr.restfulclient package were installed using the commands given below,

$ sudo dpkg-query -l | grep python-lazr.restfulclient *

You will get with python-lazr.restfulclient package name, version, architecture and description in a table

python-lazr.restfulclient package basic information: