From 63e291de706c4c8092fe5f19f3726e5da5e80913 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Mon, 16 Jan 2017 16:21:04 +1100
Subject: py/builtinimport: Raise ValueError for bad relative import, per
 CPython.

---
 py/builtinimport.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'py')

diff --git a/py/builtinimport.c b/py/builtinimport.c
index 4024c5d59..0e3f160a7 100644
--- a/py/builtinimport.c
+++ b/py/builtinimport.c
@@ -360,8 +360,7 @@ mp_obj_t mp_builtin___import__(size_t n_args, const mp_obj_t *args) {
         qstr new_mod_q = qstr_from_strn(new_mod, new_mod_l);
         DEBUG_printf("Resolved base name for relative import: '%s'\n", qstr_str(new_mod_q));
         if (new_mod_q == MP_QSTR_) {
-            // CPython raises SystemError
-            mp_raise_msg(&mp_type_ImportError, "cannot perform relative import");
+            mp_raise_msg(&mp_type_ValueError, "cannot perform relative import");
         }
         module_name = MP_OBJ_NEW_QSTR(new_mod_q);
         mod_str = new_mod;
-- 
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