Wow, I did not think that descriptors would apply here

src/runtime/types.cpp

@@ -402,7 +402,10 @@ extern "C" Box* sliceNew(Box* cls, Box* start, Box* stop, Box** args) {
 }
 
 Box* instancemethodRepr(BoxedInstanceMethod* self) {
-    return boxStrConstant("<bound instancemethod object>");
+    if (self->obj)
+        return boxStrConstant("<bound instancemethod object>");
+    else
+        return boxStrConstant("<unbound instancemethod object>");
 }
 
 Box* sliceRepr(BoxedSlice* self) {

test/tests/dunder_descriptors.py

@@ -4,21 +4,25 @@
 #  Descriptors get processed when fetched as part of a dunder lookup
 
 class D(object):
+    def __init__(self, n):
+        self.n = n
     def __get__(self, obj, cls):
-        print "__get__()", obj is None
-        def desc():
-            print "desc()"
-            return 1
+        print "__get__()", obj is None, self.n
+        def desc(*args):
+            print "desc()", len(args)
+            return self.n
         return desc
 
     def __call__(self):
         print "D.call"
-        return 2
+        return self.n
 
 class C(object):
-    __hash__ = D()
+    __hash__ = D(1)
+    __add__ = D(2)
 
 c = C()
 print C.__hash__()
 print c.__hash__()
 print hash(c)
+print c + c