Epub: only attach images referenced in the text.

[librarian.git] / librarian / picture.py

diff --git a/librarian/picture.py b/librarian/picture.py
index d255f55..10d2ae7 100644 (file)
--- a/librarian/picture.py
+++ b/librarian/picture.py
@@ -154,7 +154,7 @@ class WLPicture(object):
         return self.image_store.path(self.slug, self.mime_type)
 
     def image_file(self, *args, **kwargs):
-        return open(self.image_path, *args, **kwargs)
+        return open(self.image_path, 'rb', *args, **kwargs)
 
     def get_sem_coords(self, sem):
         area = sem.find("div[@type='rect']")