$ sudo apt-get update
$ sudo apt-get install python-zope.security-untrusted

python-zope.security-untrusted is installed in your system.

Make ensure the python-zope.security-untrusted package were installed using the commands given below,

$ sudo dpkg-query -l | grep python-zope.security-untrusted*

You will get with python-zope.security-untrusted package name, version, architecture and description in a table

python-zope.security-untrusted package basic information: