code: def import_blacklist(self, parser):
          
          blacklist = parser.blacklist
  
          self.log("Loading blacklist...")
          n = 0
  
          for entry in blacklist:
              try:
                  api.add_to_matching_blacklist(self.db, entry.excluded)
                  self.display('load_blacklist.tmpl', entry=entry.excluded)
                  n += 1
              except ValueError as e:
                  raise RuntimeError(str(e))
              except AlreadyExistsError as e:
                  msg = "%s. Not added." % str(e)
                  self.warning(msg)
  
          self.log("%d/%d blacklist entries loaded" % (n, len(blacklist)))
docs: Import blacklist.
  
          New entries parsed by 'parser' will be added to the blacklist.
  
          :param parser: sorting hat parser