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

python-testscenarios is installed in your system.

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

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

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

python-testscenarios package basic information: