Remove unittest2/importlib shims for Python 2.6

redis_cache/utils.py

+import importlib
 import warnings
 
 from django.core.exceptions import ImproperlyConfigured
@@ -7,11 +8,6 @@ from redis_cache.compat import (
     smart_text, python_2_unicode_compatible, parse_qs, urlparse
 )
 
-try:
-    import importlib
-except ImportError:
-    from django.utils import importlib
-
 try:
     basestring
 except NameError:

requirements-dev.txt

 hiredis==0.2.0
 django-nose==1.4
 nose==1.3.6
-unittest2==1.0.1
 msgpack-python==0.4.6
 pyyaml==3.11

tests/testapp/tests/base_tests.py

@@ -4,13 +4,8 @@ from __future__ import unicode_literals
 from hashlib import sha1
 import os
 import subprocess
-import sys
 import time
-
-if sys.version_info < (2, 7):
-    import unittest2 as unittest
-else:
-    import unittest
+import unittest
 
 
 try: