From 6ff633fc7a7fbc07250cd42103543ad8aa3d568b Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 17 Mar 2011 10:51:14 -0600
Subject: [PATCH] ...

---
 src/calibre/ebooks/metadata/sources/google.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/ebooks/metadata/sources/google.py b/src/calibre/ebooks/metadata/sources/google.py
index 289be1bcc8..153f9f4d8e 100644
--- a/src/calibre/ebooks/metadata/sources/google.py
+++ b/src/calibre/ebooks/metadata/sources/google.py
@@ -195,7 +195,7 @@ class GoogleBooks(Source):
                 ans = to_metadata(br, log, i, timeout)
                 if isinstance(ans, Metadata):
                     result_queue.put(ans)
-                    for isbn in ans.all_isbns:
+                    for isbn in getattr(ans, 'all_isbns', []):
                         self.cache_isbn_to_identifier(isbn,
                                 ans.identifiers['google'])
             except: