diff --git a/Lib/inspect.py b/Lib/inspect.py
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -1080,7 +1080,7 @@
 
 def _check_class(klass, attr):
     for entry in _static_getmro(klass):
-        if not _shadowed_dict(type(entry)):
+        if _shadowed_dict(type(entry)) is _sentinel:
             try:
                 return entry.__dict__[attr]
             except KeyError:
@@ -1105,8 +1105,8 @@
             if not (type(class_dict) is types.GetSetDescriptorType and
                     class_dict.__name__ == "__dict__" and
                     class_dict.__objclass__ is entry):
-                return True
-    return False
+                return class_dict
+    return _sentinel
 
 def getattr_static(obj, attr, default=_sentinel):
     """Retrieve attributes without triggering dynamic lookup via the
@@ -1122,7 +1122,9 @@
     instance_result = _sentinel
     if not _is_type(obj):
         klass = type(obj)
-        if not _shadowed_dict(klass):
+        dict_attr = _shadowed_dict(klass)
+        if (dict_attr is _sentinel or
+            type(dict_attr) is types.MemberDescriptorType):
             instance_result = _check_instance(obj, attr)
     else:
         klass = obj
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -987,6 +987,11 @@
         self.assertEqual(inspect.getattr_static(instance, "spam"), 42)
         self.assertFalse(Thing.executed)
 
+    def test_module(self):
+        sentinel = object()
+        self.assertIsNot(inspect.getattr_static(sys, "version", sentinel),
+                         sentinel)
+
 class TestGetGeneratorState(unittest.TestCase):
 
     def setUp(self):