[5.2.x] Fixed #36903 -- Fixed further NameErrors when inspecting functions with deferred annotations.

Provide a wrapper for safe introspection of user functions on Python 3.14+.

Follow-up to 601914722956cc41f1f2c53972d669ddee6ffc04.
Backport of 56ed37e17e5b1a509aa68a0c797dcff34fcc1366 from main.

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/template_tests/tests.py b/tests/template_tests/tests.py
index 7364c7ca64..da03c2d1b5 100644
--- a/tests/template_tests/tests.py
+++ b/tests/template_tests/tests.py
@@ -1,10 +1,16 @@
 import sys
+import unittest
+from typing import TYPE_CHECKING, TypeAlias
 
 from django.template import Context, Engine, TemplateDoesNotExist, TemplateSyntaxError
 from django.template.base import UNKNOWN_SOURCE
 from django.test import SimpleTestCase, override_settings
 from django.urls import NoReverseMatch
 from django.utils import translation
+from django.utils.version import PY314
+
+if TYPE_CHECKING:
+    AnnotatedKwarg: TypeAlias = str
 
 
 class TemplateTestMixin:
@@ -221,6 +227,21 @@ class TemplateTestMixin:
         template = self._engine().from_string("{{ description.count }}")
         self.assertEqual(template.render(Context({"description": "test"})), "")
 
+    @unittest.skipUnless(PY314, "Deferred annotations are Python 3.14+ only")
+    def test_callable_uses_deferred_annotations(self):
+        """
+        Missing required arguments are gracefully handled when a signature uses
+        deferred annotations.
+        """
+
+        class MyObject:
+            @staticmethod
+            def uses_deferred_annotations(value: AnnotatedKwarg):
+                return value
+
+        template = self._engine().from_string("{{ obj.uses_deferred_annotations }}")
+        self.assertEqual(template.render(Context({"obj": MyObject()})), "")
+
 
 class TemplateTests(TemplateTestMixin, SimpleTestCase):
     debug_engine = False