File "articles/feed.py", line 172, in create_feed_from_articles
return feed.atom_str(1)
File "local/lib/python2.7/site-packages/feedgen/feed.py", line 211, in atom_str
feed, doc = self._create_atom(extensions=extensions)
File "local/lib/python2.7/site-packages/feedgen/feed.py", line 195, in _create_atom
entry = entry.atom_entry()
File "local/lib/python2.7/site-packages/feedgen/entry.py", line 139, in atom_entry
cat = etree.SubElement(feed, 'category', term=c['term'])
NameError: global name 'feed' is not defined
TIA