From 4a9f82f50d957b6cf3fd207de8b583d9137316b8 Mon Sep 17 00:00:00 2001
From: Pablo Galindo <Pablogsal@gmail.com>
Date: Thu, 8 Oct 2020 14:24:28 +0100
Subject: [PATCH] bpo-41970: Avoid test failure in test_lib2to3 if the module
 is already imported (GH-22595)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

…

Automerge-Triggered-By: @pablogsal
---
 Lib/test/test_lib2to3.py                                       | 3 ++-
 .../NEWS.d/next/Tests/2020-10-08-14-00-17.bpo-41970.aZ8QFf.rst | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Tests/2020-10-08-14-00-17.bpo-41970.aZ8QFf.rst

diff --git a/Lib/test/test_lib2to3.py b/Lib/test/test_lib2to3.py
index 159a8387e4e..fd12a7e7acb 100644
--- a/Lib/test/test_lib2to3.py
+++ b/Lib/test/test_lib2to3.py
@@ -1,8 +1,9 @@
 import unittest
+from test.support.import_helper import import_fresh_module
 from test.support.warnings_helper import check_warnings
 
 with check_warnings(("", PendingDeprecationWarning)):
-    from lib2to3.tests import load_tests
+    load_tests = import_fresh_module('lib2to3.tests', fresh=['lib2to3']).load_tests
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/Misc/NEWS.d/next/Tests/2020-10-08-14-00-17.bpo-41970.aZ8QFf.rst b/Misc/NEWS.d/next/Tests/2020-10-08-14-00-17.bpo-41970.aZ8QFf.rst
new file mode 100644
index 00000000000..4cdca197fbf
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2020-10-08-14-00-17.bpo-41970.aZ8QFf.rst
@@ -0,0 +1,2 @@
+Avoid a test failure in ``test_lib2to3`` if the module has already imported
+at the time the test executes. Patch by Pablo Galindo.