gistfile1.txt

$ hg diff
diff -r 2ae11d0d2965 pypy/objspace/std/bytesobject.py
--- a/pypy/objspace/std/bytesobject.py  Mon Jul 31 14:13:41 2017 +0200
+++ b/pypy/objspace/std/bytesobject.py  Mon Jul 31 14:32:19 2017 -0400
@@ -752,7 +752,7 @@
 
 def _get_printable_location(w_type):
     return ('bytearray_from_byte_sequence [w_type=%s]' %
-            w_type.getname(w_type.space))
+            w_type.getname(w_type.space).encode('utf-8'))
 
 _byteseq_jitdriver = jit.JitDriver(
     name='bytearray_from_byte_sequence',