Fix grouping: this is how I intended it, misguided as I was in boolean
operator associativity.
diff --git a/Objects/abstract.c b/Objects/abstract.c
index e3492ec..fcd86ca 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -813,8 +813,8 @@
PyNumber_Add, 0) <= 0)
return x;
}
- else if ((HASINPLACE(v)
- && (v->ob_type->tp_as_sequence != NULL &&
+ else if (HASINPLACE(v)
+ && ((v->ob_type->tp_as_sequence != NULL &&
(f = v->ob_type->tp_as_sequence->sq_inplace_concat) != NULL))
|| (v->ob_type->tp_as_number != NULL &&
(f = v->ob_type->tp_as_number->nb_inplace_add) != NULL))