PEP8 cleanup

Signed-off-by: Jason Myers <jason@jasonamyers.com>

tests/cache/tests.py

@@ -40,10 +40,12 @@ from django.views.decorators.cache import cache_page
 
 from .models import Poll, expensive_calculation
 
+
 # functions/classes for complex data type tests
 def f():
     return 42
 
+
 class C:
     def m(n):
         return 24
@@ -823,6 +825,7 @@ class BaseCacheTests(object):
         self.assertEqual(get_cache_data.content, content.encode('utf-8'))
         self.assertEqual(get_cache_data.cookies, response.cookies)
 
+
 def custom_key_func(key, key_prefix, version):
     "A customized cache key function"
     return 'CUSTOM-' + '-'.join([key_prefix, str(version), key])
@@ -1004,6 +1007,7 @@ class LocMemCacheTests(unittest.TestCase, BaseCacheTests):
         self.cache.decr(key)
         self.assertEqual(expire, self.cache._expire_info[_key])
 
+
 # memcached backend isn't guaranteed to be available.
 # To check the memcached backend, the test settings file will
 # need to contain at least one cache backend setting that points at
@@ -1581,6 +1585,7 @@ class CacheI18nTest(TestCase):
         get_cache_data = FetchFromCacheMiddleware().process_request(request)
         self.assertIsNone(get_cache_data)
 
+
 @override_settings(
     CACHES={
         'default': {
@@ -1816,6 +1821,7 @@ class CacheMiddlewareTest(IgnoreDeprecationWarningsMixin, TestCase):
         response = other_with_prefix_view(request, '16')
         self.assertEqual(response.content, b'Hello World 16')
 
+
 @override_settings(
     CACHE_MIDDLEWARE_KEY_PREFIX='settingsprefix',
     CACHE_MIDDLEWARE_SECONDS=1,