diff --git a/common/lib/xmodule/xmodule/tests/rendering/__init__.py b/common/lib/xmodule/xmodule/tests/rendering/__init__.py
index fc6a0c4d9b..c81c3d0b5c 100644
--- a/common/lib/xmodule/xmodule/tests/rendering/__init__.py
+++ b/common/lib/xmodule/xmodule/tests/rendering/__init__.py
@@ -1,4 +1,6 @@
 """
 Package declaration for content assertions test helper module
 """
-import core
+from __future__ import absolute_import
+
+from . import core
diff --git a/common/lib/xmodule/xmodule/tests/rendering/core.py b/common/lib/xmodule/xmodule/tests/rendering/core.py
index acae995397..2fed79a6e7 100644
--- a/common/lib/xmodule/xmodule/tests/rendering/core.py
+++ b/common/lib/xmodule/xmodule/tests/rendering/core.py
@@ -35,9 +35,10 @@ The functions are of the form:
 A further extension would be to provide a companion set of functions that
 resources that are provided to the Fragment
 """
-import lxml.html
-import lxml.etree
+from __future__ import absolute_import
 
+import lxml.etree
+import lxml.html
 from singledispatch import singledispatch
 
 
diff --git a/common/lib/xmodule/xmodule/tests/test_annotatable_module.py b/common/lib/xmodule/xmodule/tests/test_annotatable_module.py
index 4e6768444b..dcbf27c5ff 100644
--- a/common/lib/xmodule/xmodule/tests/test_annotatable_module.py
+++ b/common/lib/xmodule/xmodule/tests/test_annotatable_module.py
@@ -1,14 +1,16 @@
 """Module annotatable tests"""
 
+from __future__ import absolute_import
+
 import unittest
 
 from lxml import etree
 from mock import Mock
-
+from opaque_keys.edx.locator import BlockUsageLocator, CourseLocator
 from xblock.field_data import DictFieldData
 from xblock.fields import ScopeIds
+
 from xmodule.annotatable_module import AnnotatableModule
-from opaque_keys.edx.locator import BlockUsageLocator, CourseLocator
 
 from . import get_test_system
 
diff --git a/common/lib/xmodule/xmodule/tests/test_bulk_assertions.py b/common/lib/xmodule/xmodule/tests/test_bulk_assertions.py
index 5e99c1e407..7ca863bb6b 100644
--- a/common/lib/xmodule/xmodule/tests/test_bulk_assertions.py
+++ b/common/lib/xmodule/xmodule/tests/test_bulk_assertions.py
@@ -1,6 +1,10 @@
-import ddt
+from __future__ import absolute_import
+
 import itertools
-from xmodule.tests import BulkAssertionTest, BulkAssertionError
+
+import ddt
+
+from xmodule.tests import BulkAssertionError, BulkAssertionTest
 
 ASSERTION_METHODS_DICT = {
     "GETITEM_SPECIAL_METHOD": {}.__getitem__,
diff --git a/common/lib/xmodule/xmodule/tests/test_course_metadata_utils.py b/common/lib/xmodule/xmodule/tests/test_course_metadata_utils.py
index 4f63035fae..1409272ced 100644
--- a/common/lib/xmodule/xmodule/tests/test_course_metadata_utils.py
+++ b/common/lib/xmodule/xmodule/tests/test_course_metadata_utils.py
@@ -1,32 +1,34 @@
 """
 Tests for course_metadata_utils.
 """
+from __future__ import absolute_import
+
 from collections import namedtuple
-from datetime import timedelta, datetime
+from datetime import datetime, timedelta
 from unittest import TestCase
 
 from pytz import utc
+
 from xmodule.block_metadata_utils import (
-    url_name_for_block,
     display_name_with_default,
     display_name_with_default_escaped,
+    url_name_for_block
 )
 from xmodule.course_metadata_utils import (
-    clean_course_key,
-    number_for_course_location,
-    has_course_started,
-    has_course_ended,
     DEFAULT_START_DATE,
+    clean_course_key,
     course_start_date_is_default,
+    has_course_ended,
+    has_course_started,
     may_certify_for_course,
+    number_for_course_location
 )
 from xmodule.modulestore.tests.utils import (
+    MixedModulestoreBuilder,
     MongoModulestoreBuilder,
-    VersioningModulestoreBuilder,
-    MixedModulestoreBuilder
+    VersioningModulestoreBuilder
 )
 
-
 _TODAY = datetime.now(utc)
 _LAST_MONTH = _TODAY - timedelta(days=30)
 _LAST_WEEK = _TODAY - timedelta(days=7)
diff --git a/common/lib/xmodule/xmodule/tests/test_import.py b/common/lib/xmodule/xmodule/tests/test_import.py
index 4db8c13af0..3d6d5accff 100644
--- a/common/lib/xmodule/xmodule/tests/test_import.py
+++ b/common/lib/xmodule/xmodule/tests/test_import.py
@@ -1,35 +1,30 @@
 # -*- coding: utf-8 -*-
 
-from __future__ import print_function
+from __future__ import absolute_import, print_function
+
 import datetime
 from tempfile import mkdtemp
 
 import ddt
-
 from django.test import TestCase
-
 from fs.osfs import OSFS
 from lxml import etree
 from mock import Mock, patch
-
+from opaque_keys.edx.keys import CourseKey
+from opaque_keys.edx.locator import BlockUsageLocator, CourseLocator
 from pytz import UTC
 from six import text_type
-
-from xmodule.xml_module import is_pointer_tag
-from opaque_keys.edx.locator import BlockUsageLocator, CourseLocator
-from xmodule.modulestore import only_xmodules
-from xmodule.modulestore.xml import ImportSystem, XMLModuleStore, LibraryXMLModuleStore
-from xmodule.modulestore.inheritance import compute_inherited_metadata
-from xmodule.x_module import XModuleMixin
-from xmodule.fields import Date
-from xmodule.tests import DATA_DIR
-from xmodule.modulestore.inheritance import InheritanceMixin
-from opaque_keys.edx.keys import CourseKey
-
 from xblock.core import XBlock
-from xblock.fields import Scope, String, Integer
-from xblock.runtime import KvsFieldData, DictKeyValueStore
+from xblock.fields import Integer, Scope, String
+from xblock.runtime import DictKeyValueStore, KvsFieldData
 
+from xmodule.fields import Date
+from xmodule.modulestore import only_xmodules
+from xmodule.modulestore.inheritance import InheritanceMixin, compute_inherited_metadata
+from xmodule.modulestore.xml import ImportSystem, LibraryXMLModuleStore, XMLModuleStore
+from xmodule.tests import DATA_DIR
+from xmodule.x_module import XModuleMixin
+from xmodule.xml_module import is_pointer_tag
 
 ORG = 'test_org'
 COURSE = 'test_course'
diff --git a/common/lib/xmodule/xmodule/tests/test_poll.py b/common/lib/xmodule/xmodule/tests/test_poll.py
index d65caac7b2..f6c38cf2aa 100644
--- a/common/lib/xmodule/xmodule/tests/test_poll.py
+++ b/common/lib/xmodule/xmodule/tests/test_poll.py
@@ -1,8 +1,11 @@
 # -*- coding: utf-8 -*-
 """Test for Poll Xmodule functional logic."""
+from __future__ import absolute_import
+
 from mock import Mock
 
 from xmodule.poll_module import PollDescriptor
+
 from . import LogicTest
 from .test_import import DummySystem
 
diff --git a/common/lib/xmodule/xmodule/tests/test_services.py b/common/lib/xmodule/xmodule/tests/test_services.py
index c7fbb73a48..44362ce6e5 100644
--- a/common/lib/xmodule/xmodule/tests/test_services.py
+++ b/common/lib/xmodule/xmodule/tests/test_services.py
@@ -2,15 +2,17 @@
 Tests for SettingsService
 """
 
-import ddt
-import mock
+from __future__ import absolute_import
+
 from unittest import TestCase
 
+import ddt
+import mock
 from config_models.models import ConfigurationModel
 from django.conf import settings
 from django.test.utils import override_settings
-
 from xblock.runtime import Mixologist
+
 from xmodule.services import ConfigurationService, SettingsService
 
 
diff --git a/common/lib/xmodule/xmodule/tests/test_stringify.py b/common/lib/xmodule/xmodule/tests/test_stringify.py
index af58f4531d..5efb379007 100644
--- a/common/lib/xmodule/xmodule/tests/test_stringify.py
+++ b/common/lib/xmodule/xmodule/tests/test_stringify.py
@@ -1,8 +1,10 @@
 """
 Tests stringify functions used in xmodule html
 """
-from __future__ import print_function
+from __future__ import absolute_import, print_function
+
 from lxml import etree
+
 from xmodule.stringify import stringify_children
 
 
diff --git a/common/lib/xmodule/xmodule/tests/test_util_duedate.py b/common/lib/xmodule/xmodule/tests/test_util_duedate.py
index 923fbe54f7..2502f9102e 100644
--- a/common/lib/xmodule/xmodule/tests/test_util_duedate.py
+++ b/common/lib/xmodule/xmodule/tests/test_util_duedate.py
@@ -1,9 +1,12 @@
 """
 Tests for extended due date utilities.
 """
-import mock
+from __future__ import absolute_import
+
 import unittest
 
+import mock
+
 from ..util import duedate