This library allows your Java or .NET program to interface very easily with the Python world. It uses the Pyro protocol to call methods on remote objects. It also supports convenient access to a Pyro Flame server including the remote interactive console.
Pyrolite is a tiny library (~60Kb) that implements a part of the client side Pyro library, hence its name ‘lite’. Because Pyrolite has no dependencies, it is a much lighter way to use Pyro from Java/.NET than a solution with jython+pyro or IronPython+pyro would provide. So if you don’t need Pyro’s full feature set, and don’t require your Java/.NET code to host Pyro objects itself, Pyrolite may be a good choice to connect java or .NET and python.
Pyrolite contains a feature complete implementation of Python’s pickle protocol (with fairly intelligent mapping of datatypes between Python and Java/.NET), and a small part of Pyro’s client network protocol and proxy logic. It can also use the Serpent serialization format.
Get it from here: http://irmen.home.xs4all.nl/pyrolite/
Readme: http://irmen.home.xs4all.nl/pyrolite/README.txt
License (same as Pyro): http://irmen.home.xs4all.nl/pyrolite/LICENSE
Source is on Github: https://github.com/irmen/Pyrolite
Small code example in Java:
import net.razorvine.pyro.*;
NameServerProxy ns = NameServerProxy.locateNS(null);
PyroProxy remoteobject = new PyroProxy(ns.lookup("Your.Pyro.Object"));
Object result = remoteobject.call("pythonmethod", 42, "hello", new int[]{1,2,3});
String message = (String)result; // cast to the type that 'pythonmethod' returns
System.out.println("result message="+message);
remoteobject.close();
ns.close();
The same example in C#:
using Razorvine.Pyro;
using( NameServerProxy ns = NameServerProxy.locateNS(null) )
{
using( PyroProxy something = new PyroProxy(ns.lookup("Your.Pyro.Object")) )
{
object result = something.call("pythonmethod", 42, "hello", new int[]{1,2,3});
string message = (string)result; // cast to the type that 'pythonmethod' returns
Console.WriteLine("result message="+message);
}
}
You can also use Pyro Flame rather conveniently because of some wrapper classes:
Config.SERIALIZER = Config.SerializerType.pickle; // flame requires the pickle serializer
PyroProxy flame = new PyroProxy(hostname, port, "Pyro.Flame");
FlameModule r_module = (FlameModule) flame.call("module", "socket");
System.out.println("hostname=" + r_module.call("gethostname"));
FlameRemoteConsole console = (FlameRemoteConsole) flame.call("console");
console.interact();
console.close();