From e1b24b8aac236a4f89d7676e856ba5ec6c3c693c Mon Sep 17 00:00:00 2001
From: slush0 <slush@satoshilabs.com>
Date: Sun, 22 Feb 2015 17:29:29 +0100
Subject: [PATCH] binascii: ~40% speedup of unhexlify

---
 binascii/binascii.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/binascii/binascii.py b/binascii/binascii.py
index 4c31b7a3..ac3f1c72 100644
--- a/binascii/binascii.py
+++ b/binascii/binascii.py
@@ -4,7 +4,7 @@ def unhexlify(data):
     if len(data) % 2 != 0:
         raise Exception("Odd-length string")
 
-    return b''.join([ int(data[i:i+2], 16).to_bytes(1) for i in range(0, len(data), 2) ])
+    return bytes([ int(data[i:i+2], 16) for i in range(0, len(data), 2) ])
 
 b2a_hex = hexlify
 a2b_hex = unhexlify