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-rw-r--r--Lib/test/test_subprocess.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 410849fc28..837bdb50a4 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -874,6 +874,7 @@ class ProcessTestCase(BaseTestCase):
stdout=subprocess.PIPE,
bufsize=0)
f = p.stdout
+ self.addCleanup(f.close)
try:
self.assertEqual(f.read(4), b"appl")
self.assertIn(f, select.select([f], [], [], 0.0)[0])