Improve grouping of imports in tests.
diff --git a/mock/tests/testhelpers.py b/mock/tests/testhelpers.py
index 14dbfe3..d96dbf4 100644
--- a/mock/tests/testhelpers.py
+++ b/mock/tests/testhelpers.py
@@ -3,7 +3,6 @@
 # http://www.voidspace.org.uk/python/mock/
 
 import six
-
 import unittest2 as unittest
 
 from mock import (
diff --git a/mock/tests/testmagicmethods.py b/mock/tests/testmagicmethods.py
index 20b0e9f..f47a202 100644
--- a/mock/tests/testmagicmethods.py
+++ b/mock/tests/testmagicmethods.py
@@ -4,8 +4,6 @@
 
 from __future__ import division
 
-import unittest2 as unittest
-
 try:
     unicode
 except NameError:
@@ -13,10 +11,13 @@
     unicode = str
     long = int
 
-import six
 import inspect
 import sys
 import textwrap
+
+import six
+import unittest2 as unittest
+
 from mock import Mock, MagicMock
 from mock.mock import _magics
 
diff --git a/mock/tests/testmock.py b/mock/tests/testmock.py
index ddecfe1..d60f579 100644
--- a/mock/tests/testmock.py
+++ b/mock/tests/testmock.py
@@ -2,17 +2,14 @@
 # E-mail: fuzzyman AT voidspace DOT org DOT uk
 # http://www.voidspace.org.uk/python/mock/
 
-import unittest2 as unittest
-from mock.tests.support import (
-    callable, is_instance, next
-)
-
-import six
 import copy
 import pickle
 import sys
 import tempfile
 
+import six
+import unittest2 as unittest
+
 import mock
 from mock import (
     call, DEFAULT, patch, sentinel,
@@ -21,6 +18,9 @@
     create_autospec
 )
 from mock.mock import _CallList
+from mock.tests.support import (
+    callable, is_instance, next
+)
 
 
 try:
diff --git a/mock/tests/testpatch.py b/mock/tests/testpatch.py
index 208e97a..761ce99 100644
--- a/mock/tests/testpatch.py
+++ b/mock/tests/testpatch.py
@@ -4,8 +4,8 @@
 
 import os
 import sys
-import six
 
+import six
 import unittest2 as unittest
 
 from mock.tests import support