def EbookIterator(*args, **kwargs):
 from calibre.ebooks.oeb.iterator.book import EbookIterator
 return EbookIterator(*args, **kwargs)

def EbookIterator ( * args , ** kwargs ) : from calibre . ebooks . oeb . iterator . book import EbookIterator return EbookIterator ( * args , ** kwargs )
for backwards compatibility .