From c3438172bab05cff28c086ea6b7b871f9cf6dfbf Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Sat, 2 Oct 2010 20:43:41 +0100
Subject: [PATCH] Print exception messages in save-to-disk get_value

---
 src/calibre/library/save_to_disk.py | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/calibre/library/save_to_disk.py b/src/calibre/library/save_to_disk.py
index afeb5ee0b9..6c86db3420 100644
--- a/src/calibre/library/save_to_disk.py
+++ b/src/calibre/library/save_to_disk.py
@@ -114,8 +114,14 @@ class SafeFormat(TemplateFormatter):
 
     def get_value(self, key, args, kwargs):
         try:
-            b = self.book.get_user_metadata(key, False)
             key = key.lower()
+            try:
+                b = self.book.get_user_metadata(key, False)
+            except:
+                print 'save_to_disk get value exception'
+                traceback.print_exc()
+                b = None
+
             if b is not None and b['datatype'] == 'composite':
                 if key in self.composite_values:
                     return self.composite_values[key]
@@ -124,9 +130,11 @@ class SafeFormat(TemplateFormatter):
                     self.vformat(b['display']['composite_template'], [], kwargs)
                 return self.composite_values[key]
             if kwargs[key]:
-                return self.sanitize(kwargs[key.lower()])
+                return self.sanitize(kwargs[key])
             return ''
         except:
+            print 'save_to_disk general exception'
+            traceback.print_exc()
             return ''
 
 safe_formatter = SafeFormat()