Pyro ns=True not working

Question

I'm totally new to RPC and Pyro and trying to understand the consept of it.I'm doing the example of website of it and my code isn't working when I do ns=True despite it's working when ns=False.I'am getting this error:

Pyro4.errors.NamingError: Failed to locate the nameserver

When I debug with ipdb,I see this:

CommunicationError: cannot connect: [Errno 111] Connection refused

from __future__ import print_function
import Pyro4
import person

class Warehouse(object):
    def __init__(self):
        self.contents = ["chair", "bike", "flashlight", "laptop", "couch"]

    def list_contents(self):
        return self.contents

    def take(self, name, item):
        self.contents.remove(item)
        print("{0} took the {1}.".format(name, item))

    def store(self, name, item):
        self.contents.append(item)
        print("{0} stored the {1}.".format(name, item))

def main():
    warehouse = Warehouse()
    Pyro4.Daemon.serveSimple(
            {
                warehouse: "example.warehouse"
            },
            ns = True)

if __name__=="__main__":
    main()

what is the solution of not starting the daemon?

Answer 1

The ns=True argument in serveSimple will register the objects in a running nameserver somewhere. You'll have to start that by yourself. It won't work if there's no name server already running.

Answer 2

You need to read the instructions carefully on the tutorial. You need to run python -m Pyro4.naming outside of warehouse.py