gh-106309: Deprecate typing.no_type_check_decorator (#106312)

2 files changed, 10 insertions, 4 deletions

diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 1df2192..0450a87 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -5794,10 +5794,14 @@ class ForwardRefTests(BaseTestCase):
                 get_type_hints(clazz)
 
     def test_meta_no_type_check(self):
-
-        @no_type_check_decorator
-        def magic_decorator(func):
-            return func
+        depr_msg = (
+            "'typing.no_type_check_decorator' is deprecated "
+            "and slated for removal in Python 3.15"
+        )
+        with self.assertWarnsRegex(DeprecationWarning, depr_msg):
+            @no_type_check_decorator
+            def magic_decorator(func):
+                return func
 
         self.assertEqual(magic_decorator.__name__, 'magic_decorator')
 
diff --git a/Lib/typing.py b/Lib/typing.py
index 9187b74..387b4c5 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -2395,6 +2395,8 @@ def no_type_check_decorator(decorator):
     This wraps the decorator with something that wraps the decorated
     function in @no_type_check.
     """
+    import warnings
+    warnings._deprecated("typing.no_type_check_decorator", remove=(3, 15))
     @functools.wraps(decorator)
     def wrapped_decorator(*args, **kwds):
         func = decorator(*args, **kwds)