$ sudo apt-get update
$ sudo apt-get install python-ironicclient 

python-ironicclient is installed in your system.

Make ensure the python-ironicclient package were installed using the commands given below,

$ sudo dpkg-query -l | grep python-ironicclient *

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

python-ironicclient package basic information: