diff -r a2d01ed713cb Lib/uuid.py
--- a/Lib/uuid.py	Sun Aug 03 15:27:18 2014 -0400
+++ b/Lib/uuid.py	Sun Aug 03 14:35:01 2014 -0700
@@ -43,6 +43,7 @@
     >>> uuid.UUID(bytes=x.bytes)
     UUID('00010203-0405-0607-0809-0a0b0c0d0e0f')
 """
+from binascii import unhexlify
 
 __author__ = 'Ka-Ping Yee <ping@zesty.ca>'
 
@@ -234,10 +235,7 @@
 
     @property
     def bytes(self):
-        bytes = bytearray()
-        for shift in range(0, 128, 8):
-            bytes.insert(0, (self.int >> shift) & 0xff)
-        return bytes_(bytes)
+        return unhexlify(self.hex)
 
     @property
     def bytes_le(self):