From 5b174651e7cadaa9c353cd247fbfcde41b012f3a Mon Sep 17 00:00:00 2001
From: Radek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Date: Thu, 22 Jul 2010 17:00:10 +0200
Subject: [PATCH] fix for files without dc

---
 librarian/epub.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/librarian/epub.py b/librarian/epub.py
index e54e4cd..139dd39 100644
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -13,7 +13,7 @@ from copy import deepcopy
 from lxml import etree
 import zipfile
 
-from librarian import XMLNamespace, RDFNS, DCNS, WLNS, XHTMLNS
+from librarian import XMLNamespace, RDFNS, DCNS, WLNS, XHTMLNS, NoDublinCore
 
 NCXNS = XMLNamespace("http://www.daisy.org/z3986/2005/ncx/")
 OPFNS = XMLNamespace("http://www.idpf.org/2007/opf")
@@ -211,6 +211,8 @@ def transform(input_file, output_file):
                        '</rootfiles></container>')
 
     metadata_el = input_xml.find('.//'+RDFNS('Description'))
+    if metadata_el is None:
+        raise NoDublinCore('Document has no DublinCore - which is required.')
     metadatasource = etree.ElementTree(metadata_el)
 
     opf = xslt(metadatasource, res('xsltContent.xsl'))
-- 
2.20.1