property_traverse() should also traverse into prop_doc -- there's no

typecheck that guarantees it's a string, and BTW string subclasses
could hide references.

diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index 77ef3599800ef6e7c8641e5acd9434abd0cdec67..1c5098603cee653ceb5af33b59c11c10b37f30ed 100644 (file)
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -1201,6 +1201,7 @@ property_traverse(PyObject *self, visitproc visit, void *arg)
        VISIT(prop_get);
        VISIT(prop_set);
        VISIT(prop_del);
+       VISIT(prop_doc);
 
        return 0;
 }