code: def canonical_new_peer_list( self, peers_to_add ):
          
          new_peers = list(set(self.new_peers + peers_to_add))
          random.shuffle( new_peers )
          
          # canonicalize
          tmp = []
          for peer in new_peers:
              tmp.append( self.canonical_peer(peer) )
  
          new_peers = tmp
  
          # don't talk to myself
          if self.my_hostport in new_peers:
              new_peers.remove(self.my_hostport)
  
          return new_peers
docs: Make a list of canonical new peers, using the
          self.new_peers and the given peers to add
  
          Return a shuffled list of canonicalized host:port
          strings.