[Django]-ImportError : cannot import name generic

loading class has been removed in django 1.9 so that’s why you are getting the error. Instead you can use apps class.

>>> from django.apps import apps

EDIT:
generic class is also removed in v1.9 and functionality has been moved to models class and fields class.

>>> from django.contrib.contenttypes.models import ContentType
>>> from django.contrib.contenttypes.fields import GenericForeignKey

More info can be found here