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-rw-r--r--Lib/test/test_os.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 1f7e49c637..e29b0d585c 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -971,6 +971,9 @@ class MakedirTests(unittest.TestCase):
os.makedirs(path, mode=mode, exist_ok=True)
os.umask(old_mask)
+ # Issue #25583: A drive root could raise PermissionError on Windows
+ os.makedirs(os.path.abspath('/'), exist_ok=True)
+
@unittest.skipUnless(hasattr(os, 'chown'), 'test needs os.chown')
def test_chown_uid_gid_arguments_must_be_index(self):
stat = os.stat(support.TESTFN)