From 5fd5af98d0292e06f42e0e0dc6ea8278219cdd6e Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Sun, 25 May 2014 22:12:56 +0300
Subject: objlist: Implement support for arbitrary (3-arg) slices.

---
 py/objstr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'py/objstr.c')

diff --git a/py/objstr.c b/py/objstr.c
index 84a6f30aa..f5939d1b1 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -353,7 +353,8 @@ STATIC mp_obj_t str_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);
+                nlr_raise(mp_obj_new_exception_msg(&mp_type_NotImplementedError,
+                    "Only slices with step=1 (aka None) are supported"));
             }
             return str_new(type, self_data + slice.start, slice.stop - slice.start);
         }
-- 
cgit v1.2.3