diff -r a16fceb686a7 -r ab7f86a748e6 mercurial/templater.py
--- a/mercurial/templater.py	Thu Mar 01 16:42:24 2018 -0500
+++ b/mercurial/templater.py	Thu Mar 01 16:52:17 2018 -0500
@@ -548,7 +548,7 @@
     if sym:
         raise error.ParseError(_("keyword '%s' has no member") % sym)
     else:
-        raise error.ParseError(_("%r has no member") % d)
+        raise error.ParseError(_("%r has no member") % pycompat.bytestr(d))
 
 def buildnegate(exp, context):
     arg = compileexp(exp[1], context, exprmethods)