Skip objects which aren't callable when inferring an instance's call result.

2 files changed, 17 insertions, 1 deletions

diff --git a/astroid/bases.py b/astroid/bases.py
index 72fd0d8..c2ea55e 100644
--- a/astroid/bases.py
+++ b/astroid/bases.py
@@ -215,7 +215,7 @@ class Instance(Proxy):
         """infer what a class instance is returning when called"""
         inferred = False
         for node in self._proxied.igetattr('__call__', context):
-            if node is util.YES:
+            if node is util.YES or not node.callable():
                 continue
             for res in node.infer_call_result(caller, context):
                 inferred = True
diff --git a/astroid/tests/unittest_inference.py b/astroid/tests/unittest_inference.py
index 644e282..841d9ff 100644
--- a/astroid/tests/unittest_inference.py
+++ b/astroid/tests/unittest_inference.py
@@ -2995,6 +2995,22 @@ class InferenceTest(resources.SysPathSetup, unittest.TestCase):
         self.assertIsInstance(inferred, Instance)
         self.assertEqual(inferred.name, 'Sub')
 
+    def test_infer_call_result_invalid_dunder_call_on_instance(self):
+        ast_nodes = test_utils.extract_node('''
+        class A:
+            __call__ = 42
+        class B:
+            __call__ = A()
+        class C:
+            __call = None
+        A() #@
+        B() #@
+        C() #@
+        ''')
+        for node in ast_nodes:
+            inferred = next(node.infer())
+            self.assertRaises(InferenceError, next, inferred.infer_call_result(node))
+
 
 class GetattrTest(unittest.TestCase):