From fd8440a223bfc1f019854f857acff40315af78e2 Mon Sep 17 00:00:00 2001
From: Denis Jacquerye <moyogo@gmail.com>
Date: Wed, 28 Oct 2015 08:44:08 +0000
Subject: [PATCH] validators: png signature as bytes

---
 Lib/ufoLib/validators.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/ufoLib/validators.py b/Lib/ufoLib/validators.py
index 0643a88b6..538413e30 100644
--- a/Lib/ufoLib/validators.py
+++ b/Lib/ufoLib/validators.py
@@ -747,7 +747,7 @@ def pngValidator(path=None, data=None, fileObj=None):
 		pos = fileObj.tell()
 		signature = fileObj.read(8)
 		fileObj.seek(pos)
-	if signature != "\x89PNG\r\n\x1a\n":
+	if signature != b"\x89PNG\r\n\x1a\n":
 		return False, "Image does not begin with the PNG signature."
 	return True, None