diff --git a/lms/djangoapps/verify_student/models.py b/lms/djangoapps/verify_student/models.py
index 4675102915..e6aba8da2d 100644
--- a/lms/djangoapps/verify_student/models.py
+++ b/lms/djangoapps/verify_student/models.py
@@ -8,6 +8,8 @@ of a student over a period of time. Right now, the only models are the abstract
 `SoftwareSecurePhotoVerification`. The hope is to keep as much of the
 photo verification process as generic as possible.
 """
+from __future__ import absolute_import
+
 import functools
 import json
 import logging
@@ -20,11 +22,9 @@ import requests
 import six
 from django.conf import settings
 from django.contrib.auth.models import User
-from django.core.cache import cache
 from django.core.files.base import ContentFile
-from django.urls import reverse
 from django.db import models
-from django.dispatch import receiver
+from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy
@@ -40,7 +40,6 @@ from lms.djangoapps.verify_student.ssencrypt import (
 )
 from openedx.core.djangoapps.signals.signals import LEARNER_NOW_VERIFIED
 from openedx.core.storage import get_storage
-
 from .utils import earliest_allowed_verification_date
 
 log = logging.getLogger(__name__)
diff --git a/lms/djangoapps/verify_student/tests/factories.py b/lms/djangoapps/verify_student/tests/factories.py
index 581768f607..baae3033ae 100644
--- a/lms/djangoapps/verify_student/tests/factories.py
+++ b/lms/djangoapps/verify_student/tests/factories.py
@@ -1,6 +1,8 @@
 """
 Factories related to student verification.
 """
+from __future__ import absolute_import
+
 from datetime import timedelta
 
 from django.conf import settings
diff --git a/lms/djangoapps/verify_student/tests/test_fake_software_secure.py b/lms/djangoapps/verify_student/tests/test_fake_software_secure.py
index 6718cd0407..43a22bf7f4 100644
--- a/lms/djangoapps/verify_student/tests/test_fake_software_secure.py
+++ b/lms/djangoapps/verify_student/tests/test_fake_software_secure.py
@@ -2,6 +2,8 @@
 Tests for the fake software secure response.
 """
 
+from __future__ import absolute_import
+
 from django.test import TestCase
 from mock import patch
 
diff --git a/lms/djangoapps/verify_student/tests/test_models.py b/lms/djangoapps/verify_student/tests/test_models.py
index a8dd45b88e..d1d59baa94 100644
--- a/lms/djangoapps/verify_student/tests/test_models.py
+++ b/lms/djangoapps/verify_student/tests/test_models.py
@@ -1,4 +1,6 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import
+
 import json
 from datetime import datetime, timedelta
 
@@ -11,8 +13,10 @@ from django.test import TestCase
 from django.utils.timezone import now
 from freezegun import freeze_time
 from mock import patch
-from opaque_keys.edx.keys import CourseKey
+from six.moves import range
+from student.tests.factories import UserFactory
 from testfixtures import LogCapture
+from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 
 from common.test.utils import MockS3Mixin
 from lms.djangoapps.verify_student.models import (
@@ -21,9 +25,6 @@ from lms.djangoapps.verify_student.models import (
     ManualVerification,
     VerificationException,
 )
-from openedx.core.djangolib.testing.utils import CacheIsolationTestCase
-from student.tests.factories import UserFactory
-from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 
 FAKE_SETTINGS = {
     "SOFTWARE_SECURE": {
@@ -93,6 +94,7 @@ class TestVerification(TestCase):
     """
     Common tests across all types of Verications (e.g., SoftwareSecurePhotoVerication, SSOVerification)
     """
+
     def verification_active_at_datetime(self, attempt):
         """
         Tests to ensure the Verification is active or inactive at the appropriate datetimes.
@@ -443,6 +445,7 @@ class SSOVerificationTest(TestVerification):
     """
     Tests for the SSOVerification model
     """
+
     def test_active_at_datetime(self):
         user = UserFactory.create()
         attempt = SSOVerification.objects.create(user=user)
@@ -453,6 +456,7 @@ class ManualVerificationTest(TestVerification):
     """
     Tests for the ManualVerification model
     """
+
     def test_active_at_datetime(self):
         user = UserFactory.create()
         verification = ManualVerification.objects.create(user=user)
diff --git a/lms/djangoapps/verify_student/tests/test_services.py b/lms/djangoapps/verify_student/tests/test_services.py
index 114d0c6d6b..7f80dea0f3 100644
--- a/lms/djangoapps/verify_student/tests/test_services.py
+++ b/lms/djangoapps/verify_student/tests/test_services.py
@@ -3,12 +3,14 @@
 Tests for the service classes in verify_student.
 """
 
+from __future__ import absolute_import
+
 import ddt
 from django.conf import settings
 from mock import patch
 
 from common.test.utils import MockS3Mixin
-from lms.djangoapps.verify_student.models import SoftwareSecurePhotoVerification, SSOVerification, ManualVerification
+from lms.djangoapps.verify_student.models import ManualVerification, SoftwareSecurePhotoVerification, SSOVerification
 from lms.djangoapps.verify_student.services import IDVerificationService
 from student.tests.factories import UserFactory
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
diff --git a/lms/djangoapps/verify_student/tests/test_signals.py b/lms/djangoapps/verify_student/tests/test_signals.py
index cddce181ea..8e794c943d 100644
--- a/lms/djangoapps/verify_student/tests/test_signals.py
+++ b/lms/djangoapps/verify_student/tests/test_signals.py
@@ -2,6 +2,8 @@
 Unit tests for the VerificationDeadline signals
 """
 
+from __future__ import absolute_import
+
 from datetime import timedelta
 
 from django.utils.timezone import now