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

python-djangorestframework is installed in your system.

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

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

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

python-djangorestframework package basic information: