code: def _handle_response(res, delimiter):
      
      if res.status_code == 200:
          # Python 2 -- csv.reader will need bytes
          if sys.version_info[0] < 3:
              csv_io = BytesIO(res.content)
          # Python 3 -- csv.reader needs str
          else:
              csv_io = StringIO(res.text)
          data_iter = read_unicode_csv_fileobj(csv_io, delimiter=delimiter,
                                               skiprows=1)
      else:
          raise Exception('Could not download Signor data.')
      return data_iter
docs: Get an iterator over the CSV data from the response.