From 3663b586644e6d2af1d682f0703ba0d1a80d53d7 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Wed, 26 Nov 2014 14:39:54 -0600
Subject: [PATCH] correct assertion

---
 Python/codecs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/codecs.c b/Python/codecs.c
index ff9d1dec468..a0a540304aa 100644
--- a/Python/codecs.c
+++ b/Python/codecs.c
@@ -1019,7 +1019,7 @@ PyObject *PyCodec_NameReplaceErrors(PyObject *exc)
             *outp++ = Py_hexdigits[c&0xf];
         }
 
-        assert(outp == start + ressize);
+        assert(outp == PyUnicode_1BYTE_DATA(res) + ressize);
         assert(_PyUnicode_CheckConsistency(res, 1));
         restuple = Py_BuildValue("(Nn)", res, end);
         Py_DECREF(object);