Erlang port protocol for Python
===============================

Erlang port protocol for Python simplify interoperability between Erlang and
Python. On the Python side write a processor object and pass it to
``erlport.PortProtocol`` like this::

    from erlport import PortProtocol

    class Processor(object):

        def hello(self, name):
            return "Hello, %s" % name

    if __name__ == "__main__":
        PortProtocol(Processor()).start()

On the Erlang side function ``hello()`` can be called like this::

    -module(hello).
    -export([hello/1]).

    hello(Name) ->
        Port = open_port({spawn, "python hello.py"},
            [{packet, 1}, nouse_stdio, binary]),
        port_command(Port, term_to_binary({hello, Name})),
        receive
            {Port, {data, Data}} ->
                binary_to_term(Data)
        end.

Test it in the Erlang shell::

    1> c(hello).
    {ok,hello}
    2> hello:hello("Bob").
    "Hello, Bob"