installing django-filter for Django
To add ‘django_filters’ in INSTALLED_APPS, django-filter should be installed. Notice that there is no s at the end of the package name. The old package had ‘s’ at the end of the name but the new package does not have the ‘s’.
$ pip install django-filter
to see the currently installed packages by the pip:
$ pip freeze
will show all the installed packages
Django==1.11.5 django-filter==1.0.4 djangorestframework==3.6.4 pytz==2017.2