X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/45ce20d1189ea2042a097bfd9ab7b4b6e96be324..141733d3db8c11f1eb69a9c0195f07c3c2ed3f8f:/librarian/epub.py

diff --git a/librarian/epub.py b/librarian/epub.py
index 8ef436e..bf58a9f 100644
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -502,8 +502,10 @@ def transform(wldoc, verbose=False,
             document.edoc.getroot().set(flag, 'yes')
 
     # add editors info
-    document.edoc.getroot().set('editors', u', '.join(sorted(
-        editor.readable() for editor in document.editors())))
+    editors = document.editors()
+    if editors:
+        document.edoc.getroot().set('editors', u', '.join(sorted(
+            editor.readable() for editor in editors)))
     if document.book_info.funders:
         document.edoc.getroot().set('funders', u', '.join(
             document.book_info.funders))
@@ -518,6 +520,8 @@ def transform(wldoc, verbose=False,
     output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False)
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
+    functions.reg_mathml_epub(zip)
+
     # write static elements
     mime = zipfile.ZipInfo()
     mime.filename = 'mimetype'