old_contents: from revscoring.datasources.meta import vectorizers
  
  google_news_kvs = \
  vectorizers.word2vec.load_kv(path='GoogleNews-vectors-negative300.bin.gz', limit=150000)
  
new_contents: from revscoring.datasources.meta import vectorizers
  
  google_news_kvs = vectorizers.word2vec.load_kv(
      path='GoogleNews-vectors-negative300.bin.gz', limit=150000)
  
subject: fix flake8 in english_vectors