1 files changed, 1 insertions, 1 deletions
diff --git a/py/objlist.c b/py/objlist.c
index 8643be41a..647096f0d 100644
--- a/py/objlist.c
+++ b/py/objlist.c
@@ -178,7 +178,7 @@ STATIC mp_obj_t list_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
         if (MP_OBJ_IS_TYPE(index, &mp_type_slice)) {
             mp_bound_slice_t slice;
             if (!mp_seq_get_fast_slice_indexes(self->len, index, &slice)) {
-                assert(0);
+                return mp_seq_extract_slice(self->len, self->items, &slice);
             }
             mp_obj_list_t *res = list_new(slice.stop - slice.start);
             mp_seq_copy(res->items, self->items + slice.start, res->len, mp_obj_t);