A handful of flake8 fixes

caches = CacheHandler()

class DefaultCacheProxy(object):

    """

    Proxy access to the default Cache object's attributes.

from __future__ import unicode_literals

from django.core.cache import cache, caches, InvalidCacheBackendError

from django.core.cache import caches, InvalidCacheBackendError

from django.core.cache.utils import make_template_fragment_key

from django.template import Library, Node, TemplateSyntaxError, VariableDoesNotExist

import os

import pickle

import random

import re

import shutil

import string

import tempfile

import threading

import time

    # Explicitly display a skipped test if no configured cache uses MemcachedCache

    @unittest.skipUnless(

        any(cache['BACKEND'] == 'django.core.cache.backends.memcached.MemcachedCache'

            for cache in settings.CACHES.values()),

        any(c['BACKEND'] == 'django.core.cache.backends.memcached.MemcachedCache'

            for c in settings.CACHES.values()),

        "cache with python-memcached library not available")

    def test_memcached_uses_highest_pickle_version(self):

        # Regression test for #19810

        self.path = '/cache/test/'

        self.factory = RequestFactory()

    def test_patch_vary_headers(self):

        headers = (

            # Initial vary, new headers, resulting vary.

        self.assertEqual(key,

            'template.cache.spam.f27688177baec990cdf3fbd9d9c3f469')

class CacheHandlerTest(TestCase):

    def test_same_instance(self):

        """

        instances.

        """

        c = []

        def runner():

            c.append(caches['default'])