diff --git a/pytest.ini b/pytest.ini
index 63a3051cf..1af3ea0d1 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -73,10 +73,10 @@ flake8-ignore =
     scrapy/downloadermiddlewares/robotstxt.py E501
     scrapy/downloadermiddlewares/stats.py E501
     # scrapy/extensions
-    scrapy/extensions/closespider.py E501 E128
+    scrapy/extensions/closespider.py E501
     scrapy/extensions/corestats.py E501
-    scrapy/extensions/feedexport.py E128 E501
-    scrapy/extensions/httpcache.py E128 E501
+    scrapy/extensions/feedexport.py E501
+    scrapy/extensions/httpcache.py E501
     scrapy/extensions/memdebug.py E501
     scrapy/extensions/spiderstate.py E501
     scrapy/extensions/telnet.py E501
diff --git a/scrapy/extensions/httpcache.py b/scrapy/extensions/httpcache.py
index 8546628a8..6289efec0 100644
--- a/scrapy/extensions/httpcache.py
+++ b/scrapy/extensions/httpcache.py
@@ -46,9 +46,10 @@ class RFC2616Policy:
     def __init__(self, settings):
         self.always_store = settings.getbool('HTTPCACHE_ALWAYS_STORE')
         self.ignore_schemes = settings.getlist('HTTPCACHE_IGNORE_SCHEMES')
-        self.ignore_response_cache_controls = [to_bytes(cc) for cc in
-            settings.getlist('HTTPCACHE_IGNORE_RESPONSE_CACHE_CONTROLS')]
         self._cc_parsed = WeakKeyDictionary()
+        self.ignore_response_cache_controls = [
+            to_bytes(cc) for cc in settings.getlist('HTTPCACHE_IGNORE_RESPONSE_CACHE_CONTROLS')
+        ]
 
     def _parse_cachecontrol(self, r):
         if r not in self._cc_parsed: