From d16079dd90320141c2024809ba0fce43f0f2cb02 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaros=C5=82aw=20Wygoda?= <jaroslaw@wygoda.me>
Date: Wed, 11 Jan 2023 09:00:22 +0100
Subject: [PATCH] Refs #26029 -- Added LazySettings._show_deprecation_warning()
 hook.

---
 django/conf/__init__.py | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/django/conf/__init__.py b/django/conf/__init__.py
index cb70a71791..7636239697 100644
--- a/django/conf/__init__.py
+++ b/django/conf/__init__.py
@@ -154,19 +154,20 @@ class LazySettings(LazyObject):
         """Return True if the settings have already been configured."""
         return self._wrapped is not empty
 
-    @property
-    def USE_L10N(self):
+    def _show_deprecation_warning(self, message, category):
         stack = traceback.extract_stack()
         # Show a warning if the setting is used outside of Django.
-        # Stack index: -1 this line, -2 the LazyObject __getattribute__(),
-        # -3 the caller.
-        filename, _, _, _ = stack[-3]
+        # Stack index: -1 this line, -2 the property, -3 the
+        # LazyObject __getattribute__(), -4 the caller.
+        filename, _, _, _ = stack[-4]
         if not filename.startswith(os.path.dirname(django.__file__)):
-            warnings.warn(
-                USE_L10N_DEPRECATED_MSG,
-                RemovedInDjango50Warning,
-                stacklevel=2,
-            )
+            warnings.warn(message, category, stacklevel=2)
+
+    @property
+    def USE_L10N(self):
+        self._show_deprecation_warning(
+            USE_L10N_DEPRECATED_MSG, RemovedInDjango50Warning
+        )
         return self.__getattr__("USE_L10N")
 
     # RemovedInDjango50Warning.