From d562659fffa89757afaa75e84e42cf6e0f5b34c6 Mon Sep 17 00:00:00 2001
From: Tom Dyson <tom@torchbox.com>
Date: Mon, 17 Mar 2014 15:42:46 +0000
Subject: [PATCH] New-style format needs numerical placeholders

---
 wagtail/wagtailcore/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wagtail/wagtailcore/models.py b/wagtail/wagtailcore/models.py
index 90e699808..c8b5f2f6a 100644
--- a/wagtail/wagtailcore/models.py
+++ b/wagtail/wagtailcore/models.py
@@ -415,7 +415,7 @@ class Page(MP_Node, ClusterableModel, Indexed):
                     if model:
                         res.append(model)
                     else:
-                        raise NameError(_("name '%s' (used in subpage_types list) is not defined.").format(page_type))
+                        raise NameError(_("name '{0}' (used in subpage_types list) is not defined.").format(page_type))
 
                 else:
                     # assume it's already a model class