From 05a9c4d8f328c1c9fab2748a05bc8fb6911edab1 Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Tue, 2 Oct 2012 16:00:59 +0900
Subject: [PATCH] utils: a helper function to convert byte array into hex
 string

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ryu/utils.py b/ryu/utils.py
index 1bc7ea3f..f2da6702 100644
--- a/ryu/utils.py
+++ b/ryu/utils.py
@@ -65,3 +65,7 @@ def find_flagfile(default_path=RYU_DEFAULT_FLAG_FILE):
 
 def round_up(x, y):
     return ((x + y - 1) / y) * y
+
+
+def hex_array(data):
+    return ' '.join(hex(ord(chr)) for chr in data)