diff -r 8d09ec0ee934 Doc/library/unittest.mock.rst
--- a/Doc/library/unittest.mock.rst	Sat Aug 20 17:31:07 2016 -0400
+++ b/Doc/library/unittest.mock.rst	Sun Aug 21 02:24:17 2016 +0200
@@ -1900,6 +1900,12 @@
     >>> m.mock_calls == kall.call_list()
     True
 
+.. note::
+
+   `"__wrapped__"` can not be used as a method name on `call` objects, otherwise
+   it would make `inspect.unwrap` loop indefinitely (prohibiting `call` objects
+   from being present at module level when running doctests).
+
 .. _calls-as-tuples:
 
 A ``call`` object is either a tuple of (positional args, keyword args) or
diff -r 8d09ec0ee934 Lib/unittest/mock.py
--- a/Lib/unittest/mock.py	Sat Aug 20 17:31:07 2016 -0400
+++ b/Lib/unittest/mock.py	Sun Aug 21 02:24:17 2016 +0200
@@ -1951,6 +1951,10 @@
         _Call(('foo', (1, 2), {'a': 3})) == call.foo(1, 2, a=3)
 
     If the _Call has no name then it will match any name.
+
+    .. note:: `__wrapped__` can not be used as a `_Call` method name, and will
+              always raise `AttributeError`.
+
     """
     def __new__(cls, value=(), name=None, parent=None, two=False,
                 from_kall=True):
@@ -2055,6 +2059,11 @@
 
 
     def __getattr__(self, attr):
+        if attr == '__wrapped__':
+            raise AttributeError(
+                "__wrapped__ can not be used as a method name."
+                "(see issue #25532)"
+            )
         if self.name is None:
             return _Call(name=attr, from_kall=False)
         name = '%s.%s' % (self.name, attr)
diff -r 8d09ec0ee934 Lib/unittest/test/testmock/testcallable.py
--- a/Lib/unittest/test/testmock/testcallable.py	Sat Aug 20 17:31:07 2016 -0400
+++ b/Lib/unittest/test/testmock/testcallable.py	Sun Aug 21 02:24:17 2016 +0200
@@ -146,6 +146,5 @@
 
         self.assertRaises(TypeError, mock.wibble, 'some',  'args')
 
-
 if __name__ == "__main__":
     unittest.main()
diff -r 8d09ec0ee934 Lib/unittest/test/testmock/testhelpers.py
--- a/Lib/unittest/test/testmock/testhelpers.py	Sat Aug 20 17:31:07 2016 -0400
+++ b/Lib/unittest/test/testmock/testhelpers.py	Sun Aug 21 02:24:17 2016 +0200
@@ -246,6 +246,8 @@
         self.assertEqual(mock.method_calls,
                          [call.foo(1, 2, 3), call.bar.baz(a=3, b=6)])
 
+    def test_no_wrapped_attribute(self):
+        self.assertFalse(hasattr(call, '__wrapped__'))
 
     def test_extended_call(self):
         result = call(1).foo(2).bar(3, a=4)