diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 1474624..887f8ee 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -3801,6 +3801,7 @@ class _TestSharedMemory(BaseTestCase):
         sms.close()

     @unittest.skipIf(os.name != "posix", "not feasible in non-posix platforms")
+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
     def test_shared_memory_SharedMemoryServer_ignores_sigint(self):
         # bpo-36368: protect SharedMemoryManager server process from
         # KeyboardInterrupt signals.
diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
index d41e94b..a1c15e7 100644
--- a/Lib/test/test_signal.py
+++ b/Lib/test/test_signal.py
@@ -78,6 +78,7 @@ class PosixTests(unittest.TestCase):
         self.assertLess(len(s), signal.NSIG)

     @unittest.skipUnless(sys.executable, "sys.executable required.")
+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
     def test_keyboard_interrupt_exit_code(self):
         """KeyboardInterrupt triggers exit via SIGINT."""
         process = subprocess.run(
@@ -128,6 +129,7 @@ class WindowsSignalTests(unittest.TestCase):
             signal.signal(7, handler)

     @unittest.skipUnless(sys.executable, "sys.executable required.")
+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
     def test_keyboard_interrupt_exit_code(self):
         """KeyboardInterrupt triggers an exit using STATUS_CONTROL_C_EXIT."""
         # We don't test via os.kill(os.getpid(), signal.CTRL_C_EVENT) here
@@ -1245,6 +1247,7 @@ class StressTest(unittest.TestCase):

 class RaiseSignalTest(unittest.TestCase):

+    @unittest.skipUnless(sys.stdin.isatty(), "KeyboardInterrupts require a TTY device")
     def test_sigint(self):
         with self.assertRaises(KeyboardInterrupt):
             signal.raise_signal(signal.SIGINT)
--
2.23.0
/tr></table>
<div class='path'>path: <a href='/guix/log/?id=4089d7920fc5f27fefdde6b0fec17f3224e62377'>root</a>/<a href='/guix/log/gnu?id=4089d7920fc5f27fefdde6b0fec17f3224e62377'>gnu</a>/<a href='/guix/log/gnu/packages?id=4089d7920fc5f27fefdde6b0fec17f3224e62377'>packages</a>/<a href='/guix/log/gnu/packages/mc.scm?id=4089d7920fc5f27fefdde6b0fec17f3224e62377'>mc.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/mc.scm?id=4089d7920fc5f27fefdde6b0fec17f3224e62377&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-05-26 00:19:39 +0200'>2020-05-26</span></td><td><a href='/guix/commit/gnu/packages/mc.scm?id=403aa3aaf248703f0c9faeec6d4a99171a5cd371'>gnu: mc: Update to 4.8.24.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-05-13 09:30:26 +0300'>2020-05-13</span></td><td><a href='/guix/commit/gnu/packages/mc.scm?id=3c986a7dc268756c097212de958f046b29b76c1b'>mailmap: Update entries for Nikita.</a><span class='msg-avail'>...</span></td><td>nikita</td></tr>