A property can raise an Exception, therefore the interpreter completion should check for those exceptions, fixes #538.

jedi/api/__init__.py

@@ -618,7 +618,7 @@ class Interpreter(Script):
                 for n in old:
                     try:
                         namespaces.append(getattr(n, p))
-                    except AttributeError:
+                    except Exception:
                         pass
 
             completion_names = []

test/test_api/test_interpreter.py

@@ -80,3 +80,13 @@ class TestInterpreterAPI(TestCase):
 
         foo = Foo()
         self.check_interpreter_complete('foo[0].', locals(), [])
+
+    def test_property_error(self):
+        class Foo():
+            @property
+            def bar(self):
+                raise ValueError
+
+        foo = Foo()
+        self.check_interpreter_complete('foo.bar', locals(), ['bar'])
+        self.check_interpreter_complete('foo.bar.baz', locals(), [])