code: def _handle_status(self, key, value):
          
          if key in ("DELETE_PROBLEM", "KEY_CONSIDERED"):
              self.status = self.problem_reason.get(value, "Unknown error: %r"
                                                    % value)
          else:
              raise ValueError("Unknown status message: %r" % key)
docs: Parse a status code from the attached GnuPG process.
  
          :raises: :exc:`~exceptions.ValueError` if the status message is unknown.