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

python-pythonmagick is installed in your system.

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

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

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

python-pythonmagick package basic information: