Fixed #28397 -- Removed django.core.exceptions.DjangoRuntimeWarning.

1 files changed, 2 insertions, 2 deletions

diff --git a/django/core/cache/backends/base.py b/django/core/cache/backends/base.py
index b5661891d6..a0ed8275f9 100644
--- a/django/core/cache/backends/base.py
+++ b/django/core/cache/backends/base.py
@@ -2,7 +2,7 @@
 import time
 import warnings
 
-from django.core.exceptions import DjangoRuntimeWarning, ImproperlyConfigured
+from django.core.exceptions import ImproperlyConfigured
 from django.utils.module_loading import import_string
 
 
@@ -10,7 +10,7 @@ class InvalidCacheBackendError(ImproperlyConfigured):
     pass
 
 
-class CacheKeyWarning(DjangoRuntimeWarning):
+class CacheKeyWarning(RuntimeWarning):
     pass