Abount connection refused

[Zhang-GK]

When I run
result = loads(server.parse("Hello world. It is so beautiful"))
It is an connection error.

Traceback (most recent call last):
File "", line 1, in
File "jsonrpc.py", line 934, in call
return self.__req(self.__name, args, kwargs)
File "jsonrpc.py", line 906, in __req
raise RPCTransportError(err)
jsonrpc.RPCTransportError: [Errno 111] Connection refused

result = loads(server.parse("Hello world. It is so beautiful"))
Traceback (most recent call last):
File "", line 1, in
File "jsonrpc.py", line 934, in call
return self.__req(self.__name, args, kwargs)
File "jsonrpc.py", line 906, in __req
raise RPCTransportError(err)
jsonrpc.RPCTransportError: [Errno 111] Connection refused