commit d0d0909a3a0b553826d1ddbb04a676fdabb61359
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Oct 05 05:38:50 2021 -0700
committer GitHub <noreply@github.com> Tue Oct 05 13:38:50 2021 +0100
tree 35414c72d1c490c02a7165051e2fa7a0f0bcd01b
parent 3733dddecaa332966e200718d4993545f8e52247

bpo-45354: Skip obsolete device name tests on Windows 11 (GH-28712)

(cherry picked from commit de4052fe0633e3a053e66c8477f13677054d6ede)

Co-authored-by: Jeremy Kloth <jeremy.kloth@gmail.com>

Lib/test/test_winconsoleio.py

diff --git a/Lib/test/test_winconsoleio.py b/Lib/test/test_winconsoleio.py
index 1807e47..70a8555 100644
--- a/Lib/test/test_winconsoleio.py
+++ b/Lib/test/test_winconsoleio.py
@@ -92,9 +92,11 @@ def test_open_name(self):
         f.close()
         f.close()
 
-        f = open('C:/con', 'rb', buffering=0)
-        self.assertIsInstance(f, ConIO)
-        f.close()
+        # bpo-45354: Windows 11 changed MS-DOS device name handling
+        if sys.getwindowsversion()[:3] < (10, 0, 22000):
+            f = open('C:/con', 'rb', buffering=0)
+            self.assertIsInstance(f, ConIO)
+            f.close()
 
     @unittest.skipIf(sys.getwindowsversion()[:2] <= (6, 1),
         "test does not work on Windows 7 and earlier")
@@ -114,7 +116,8 @@ def test_conout_path(self):
         conout_path = os.path.join(temp_path, 'CONOUT$')
 
         with open(conout_path, 'wb', buffering=0) as f:
-            if sys.getwindowsversion()[:2] > (6, 1):
+            # bpo-45354: Windows 11 changed MS-DOS device name handling
+            if (6, 1) < sys.getwindowsversion()[:3] < (10, 0, 22000):
                 self.assertIsInstance(f, ConIO)
             else:
                 self.assertNotIsInstance(f, ConIO)