Fixed #21188 -- Introduced subclasses for to-be-removed-in-django-XX warnings

Thanks Anssi Kääriäinen for the idea and Simon Charette for the
review.

1 files changed, 2 insertions, 1 deletions

diff --git a/django/core/cache/__init__.py b/django/core/cache/__init__.py
index 603086a39c..63b739f1de 100644
--- a/django/core/cache/__init__.py
+++ b/django/core/cache/__init__.py
@@ -20,6 +20,7 @@ from django.core import signals
 from django.core.cache.backends.base import (
     InvalidCacheBackendError, CacheKeyWarning, BaseCache)
 from django.core.exceptions import ImproperlyConfigured
+from django.utils.deprecation import RemovedInDjango19Warning
 from django.utils.module_loading import import_string
 
 
@@ -52,7 +53,7 @@ def get_cache(backend, **kwargs):
 
     """
     warnings.warn("'get_cache' is deprecated in favor of 'caches'.",
-                  PendingDeprecationWarning, stacklevel=2)
+                  RemovedInDjango19Warning, stacklevel=2)
     cache = _create_cache(backend, **kwargs)
     # Some caches -- python-memcached in particular -- need to do a cleanup at the
     # end of a request cycle. If not implemented in a particular backend