diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index 6451d6104b5d1a..b6450156113685 100644
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -491,14 +491,24 @@ def prepare_reader(self, events):
 
     def test_stdin_is_tty(self):
         # Used during test log analysis to figure out if a TTY was available.
-        if os.isatty(sys.stdin.fileno()):
-            return
+        try:
+            fileno = sys.stdin.fileno()
+        except OSError:
+            pass
+        else:
+            if os.isatty(fileno):
+                return
         self.skipTest("stdin is not a tty")
 
     def test_stdout_is_tty(self):
         # Used during test log analysis to figure out if a TTY was available.
-        if os.isatty(sys.stdout.fileno()):
-            return
+        try:
+            fileno = sys.stdout.fileno()
+        except OSError:
+            pass
+        else:
+            if os.isatty(fileno):
+                return
         self.skipTest("stdout is not a tty")
 
     def test_basic(self):