From f81c03a673ae1c71ad18845b0407f26e6cf64159 Mon Sep 17 00:00:00 2001
From: Eugene Amirov <2597566+Allactaga@users.noreply.github.com>
Date: Sun, 30 Aug 2026 04:10:38 +0200
Subject: [PATCH] gh-142414: Isolate reloading modules in test_interpreters
 (#144096)

Isolate reloading modules in test_interpreters

Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com>
---
 Lib/test/test_interpreters/test_channels.py               | 8 ++++++--
 Lib/test/test_interpreters/test_queues.py                 | 8 ++++++--
 .../Tests/2026-01-21-02-03-31.gh-issue-142414.CfcgiR.rst  | 2 ++
 3 files changed, 14 insertions(+), 4 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Tests/2026-01-21-02-03-31.gh-issue-142414.CfcgiR.rst

diff --git a/Lib/test/test_interpreters/test_channels.py b/Lib/test/test_interpreters/test_channels.py
index 5437792b5a7014a..1adba40b740895f 100644
--- a/Lib/test/test_interpreters/test_channels.py
+++ b/Lib/test/test_interpreters/test_channels.py
@@ -1,4 +1,3 @@
-import importlib
 import pickle
 import threading
 from textwrap import dedent
@@ -28,7 +27,12 @@ class LowLevelTests(TestBase):
 
     def test_highlevel_reloaded(self):
         # See gh-115490 (https://github.com/python/cpython/issues/115490).
-        importlib.reload(channels)
+        interp = interpreters.create()
+        interp.exec(dedent(f"""
+            import importlib
+            from test.support import channels
+            importlib.reload(channels)
+            """));
 
 
 class TestChannels(TestBase):
diff --git a/Lib/test/test_interpreters/test_queues.py b/Lib/test/test_interpreters/test_queues.py
index baa772b3b367952..06d8e23b1fbca2f 100644
--- a/Lib/test/test_interpreters/test_queues.py
+++ b/Lib/test/test_interpreters/test_queues.py
@@ -1,4 +1,3 @@
-import importlib
 import pickle
 import threading
 from textwrap import dedent
@@ -41,7 +40,12 @@ class LowLevelTests(TestBase):
 
     def test_highlevel_reloaded(self):
         # See gh-115490 (https://github.com/python/cpython/issues/115490).
-        importlib.reload(queues)
+        interp = interpreters.create()
+        interp.exec(dedent(f"""
+            import importlib
+            from concurrent.interpreters import _queues as queues
+            importlib.reload(queues)
+            """));
 
     def test_create_destroy(self):
         qid = _queues.create(2, REPLACE, -1)
diff --git a/Misc/NEWS.d/next/Tests/2026-01-21-02-03-31.gh-issue-142414.CfcgiR.rst b/Misc/NEWS.d/next/Tests/2026-01-21-02-03-31.gh-issue-142414.CfcgiR.rst
new file mode 100644
index 000000000000000..6d4cbfc490a17db
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2026-01-21-02-03-31.gh-issue-142414.CfcgiR.rst
@@ -0,0 +1,2 @@
+Isolate reloading modules in test_interpreters to avoid having broken
+references.