Fixed assorted flake8 errors.

1 files changed, 1 insertions, 1 deletions

diff --git a/django/db/models/base.py b/django/db/models/base.py
index 9409454d3e..c96507d5a1 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -164,7 +164,7 @@ class ModelBase(type):
         # Basic setup for proxy models.
         if is_proxy:
             base = None
-            for parent in [cls for cls in parents if hasattr(cls, '_meta')]:
+            for parent in [kls for kls in parents if hasattr(kls, '_meta')]:
                 if parent._meta.abstract:
                     if parent._meta.fields:
                         raise TypeError("Abstract base class containing model fields not permitted for proxy model '%s'." % name)