From e52cce67e0efcc0f45004e594c8691f1438b0afc Mon Sep 17 00:00:00 2001
From: AlexWaygood <alex.waygood@gmail.com>
Date: Tue, 9 May 2023 11:38:10 +0100
Subject: [PATCH 1/2] gh-103193: Fix refleaks in `test_inspect` and
 `test_typing`

---
 Lib/test/test_inspect.py | 1 +
 Lib/test/test_typing.py  | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index d2b2f3171e785d..b896dafc941e3a 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -69,6 +69,7 @@ def revise(filename, *args):
 def tearDownModule():
     if support.has_socket_support:
         asyncio.set_event_loop_policy(None)
+    inspect._shadowed_dict_from_mro_tuple.cache_clear()
 
 
 def signatures_with_lexicographic_keyword_only_parameters():
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index f162e587810ac0..39a2cc5a99bad9 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -56,6 +56,10 @@
 CANNOT_SUBCLASS_INSTANCE = 'Cannot subclass an instance of %s'
 
 
+def tearDownModule():
+    inspect._shadowed_dict_from_mro_tuple.cache_clear()
+
+
 class BaseTestCase(TestCase):
 
     def assertIsSubclass(self, cls, class_or_tuple, msg=None):

From 60b18aacec05b8f8f90e5f733b389517b79a0b55 Mon Sep 17 00:00:00 2001
From: AlexWaygood <alex.waygood@gmail.com>
Date: Tue, 9 May 2023 11:48:18 +0100
Subject: [PATCH 2/2] better fix

---
 Lib/test/libregrtest/utils.py | 7 +++++++
 Lib/test/test_inspect.py      | 1 -
 Lib/test/test_typing.py       | 4 ----
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/Lib/test/libregrtest/utils.py b/Lib/test/libregrtest/utils.py
index fb13fa0e243ba7..fd46819fd903fe 100644
--- a/Lib/test/libregrtest/utils.py
+++ b/Lib/test/libregrtest/utils.py
@@ -210,6 +210,13 @@ def clear_caches():
     else:
         fractions._hash_algorithm.cache_clear()
 
+    try:
+        inspect = sys.modules['inspect']
+    except KeyError:
+        pass
+    else:
+        inspect._shadowed_dict_from_mro_tuple.cache_clear()
+
 
 def get_build_info():
     # Get most important configure and build options as a list of strings.
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index b896dafc941e3a..d2b2f3171e785d 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -69,7 +69,6 @@ def revise(filename, *args):
 def tearDownModule():
     if support.has_socket_support:
         asyncio.set_event_loop_policy(None)
-    inspect._shadowed_dict_from_mro_tuple.cache_clear()
 
 
 def signatures_with_lexicographic_keyword_only_parameters():
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 39a2cc5a99bad9..f162e587810ac0 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -56,10 +56,6 @@
 CANNOT_SUBCLASS_INSTANCE = 'Cannot subclass an instance of %s'
 
 
-def tearDownModule():
-    inspect._shadowed_dict_from_mro_tuple.cache_clear()
-
-
 class BaseTestCase(TestCase):
 
     def assertIsSubclass(self, cls, class_or_tuple, msg=None):