Echo server for test purposes. This is usually invoked by starting this module as a script:
python -m Pyro4.test.echoserver
It is also possible to use the EchoServer in user code but that is not terribly useful.
The echo server object that is provided as a Pyro object by this module. If its verbose attribute is set to True, it will print messages as it receives calls.
return the args
generates a simple exception (division by zero)
called to signal the echo server to shut down