From 42e87c060e47c3c46cacbc254cbf8910d4eb8059 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sat, 22 Aug 2015 21:04:44 +0800
Subject: [PATCH] protocols/pyon: use better object for empty builtins

---
 artiq/protocols/pyon.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/artiq/protocols/pyon.py b/artiq/protocols/pyon.py
index 13161094e..ff793945d 100644
--- a/artiq/protocols/pyon.py
+++ b/artiq/protocols/pyon.py
@@ -153,7 +153,7 @@ def _npscalar(ty, data):
 
 
 _eval_dict = {
-    "__builtins__": None,
+    "__builtins__": {},
 
     "null": None,
     "false": False,