code: def _download_movielens(dest_path):
      
  
      url = 'http://files.grouplens.org/datasets/movielens/ml-100k.zip'
      req = requests.get(url, stream=True)
  
      with open(dest_path, 'wb') as fd:
          for chunk in req.iter_content():
              fd.write(chunk)
docs: Download the dataset.