code: def _read_translations(self):
          
          print('Reading original translations')
          self.translations_map = {}
          n_translations = 0
          with open(os.path.join(self.src_dir, 'translations.txt'),
                    'rb') as csvfile:
              reader = csv.DictReader(csvfile)
              for row in reader:
                  self.translations_map.setdefault(
                      row['trans_id'], {})[row['lang']] = row['translation']
                  n_translations += 1
          print('\ttotal original translations: %s' % n_translations)
docs: Read from the old translations.txt.