Issue #23009: Skip test_selectors.test_empty_select() on Windows

Lib/test/test_selectors.py

@@ -322,7 +322,11 @@ class BaseSelectorTestCase(unittest.TestCase):
 
         self.assertEqual(bufs, [MSG] * NUM_SOCKETS)
 
+    @unittest.skipIf(sys.platform == 'win32',
+                     'select.select() cannot be used with empty fd sets')
     def test_empty_select(self):
+        # Issue #23009: Make sure EpollSelector.select() works when no FD is
+        # registered.
         s = self.SELECTOR()
         self.addCleanup(s.close)
         self.assertEqual(s.select(timeout=0), [])