Issue 23898: Fix inspect.classify_class_attrs() to work with __eq__

Patch by Mike Bayer.

Lib/test/test_inspect.py

@@ -888,6 +888,21 @@ class TestClassesAndFunctions(unittest.TestCase):
         should_find_ga = inspect.Attribute('ham', 'data', Meta, 'spam')
         self.assertIn(should_find_ga, inspect.classify_class_attrs(VA))
 
+    def test_classify_overrides_bool(self):
+        class NoBool(object):
+            def __eq__(self, other):
+                return NoBool()
+
+            def __bool__(self):
+                raise NotImplementedError(
+                    "This object does not specify a boolean value")
+
+        class HasNB(object):
+            dd = NoBool()
+
+        should_find_attr = inspect.Attribute('dd', 'data', HasNB, HasNB.dd)
+        self.assertIn(should_find_attr, inspect.classify_class_attrs(HasNB))
+
     def test_classify_metaclass_class_attribute(self):
         class Meta(type):
             fish = 'slap'