Validate that __length_hint__ returns a usable result.
diff --git a/Objects/abstract.c b/Objects/abstract.c
index 1ac4ac9..d601288 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -123,7 +123,7 @@
 		PyErr_Clear();
 		return defaultvalue;
 	}
-	rv = PyInt_AsLong(ro);
+	rv = rv = PyLong_Check(ro) ? PyLong_AsSsize_t(ro) : defaultvalue;
 	Py_DECREF(ro);
 	return rv;
 }