code: def deleteByOrigIndex(self, index):
          result = []
          result_tracker = []
          for counter, row in enumerate(self.table):
              if self.index_track[counter] != index:
                  result.append(row)
                  result_tracker.append(self.index_track[counter])
          self.table = result
          self.index_track = result_tracker
          return self