code: def ddb_path(self):
          
          # Lazy property to avoid multiple calls to has_abiext.
          try:
              return self._ddb_path
          except AttributeError:
              path = self.outdir.has_abiext("DDB")
              if path: self._ddb_path = path
              return path
docs: Absolute path of the DDB file. Empty string if file is not present.