unittest.mock.PropertyMock return value and attributes are now standard MagicMocks
diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index 0a9aece..ec17542 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -2166,6 +2166,9 @@
     Fetching a `PropertyMock` instance from an object calls the mock, with
     no args. Setting it calls the mock with the value being set.
     """
+    def _get_child_mock(self, **kwargs):
+        return MagicMock(**kwargs)
+
     def __get__(self, obj, obj_type):
         return self()
     def __set__(self, obj, val):