[library-web] [mallard] the role attribute of title is not mandatory

[Frederic Peters <fpeters src gnome org>]

commit 440cabc86af96b1f200ffd237549fe5de1b540f5
Author: Frédéric Péters <fpeters 0d be>
Date:   Mon Feb 22 08:41:43 2010 +0100

    [mallard] the role attribute of title is not mandatory

 src/modtypes/mallard.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/modtypes/mallard.py b/src/modtypes/mallard.py
index 98f7e58..8f989f4 100644
--- a/src/modtypes/mallard.py
+++ b/src/modtypes/mallard.py
@@ -79,7 +79,10 @@ class MallardPage:
         title_tag = element.find('{%s}title' % MAL_NS)
         if title_tag is not None:
             type = title_tag.attrib['type']
-            role = title_tag.attrib['role']
+            try:
+                role = title_tag.attrib['role']
+            except KeyError:
+                role = None
             if type == 'link' and not role:
                 self.link_title = dup_node(title_tag)
             if type == 'sort':