new_contents: #!/usr/bin/env python3
  
  from pythinclient.server import ThinServer
  
  class CustomThinServer(BasicThinServer):
    def __init__(self, port=65000, is_daemon=False):
      super(BasicThinServer, self).__init__(port, is_daemon=is_daemon)
      # add custom server hooks
      self.add_hook('help', self.__server_help)
      self.add_hook('echo', self.__server_echo)
      self.add_hook('log', self.__server_log)
  
    def on_accept(self, conn, addr):
      """
      This is basically a copy of the on_accept from the BasicThinServer
      """
      # receive the message
      message = conn.recv(self.recv_size)
      # handle the message
      self.on_receive(message, conn, addr)
      # close the connection
      conn.close()
  
    def __server_help(self, msg, conn, addr):
      conn.send(
        """
        Available commands:
        help      : shows this help
        echo      : send a message back to the client
        log       : log a message to the server.log file
        """.encode('ascii'))
  
    def __server_echo(self, msg, conn, addr):
      conn.send((msg + '\n').encode('ascii'))
  
    def __server_log(self, msg, conn, addr):
      # write the given message to the logfile
      with open("server.log", "a+") as fp:
        fp.write(msg + '\n')
  
  if __name__ == "__main__":
    from sys import argv
    daemon = True if "-d" in argv or "--daemon" in argv else False
    server = CustomThinServer(is_daemon=daemon)
  
    # start it up
    server.start()
subject: Add a custom server example implementation. This is fully compatible with the client example.