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

python-setproctitle is installed in your system.

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

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

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

python-setproctitle package basic information: