gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Runtime.InteropServices;
using System.Runtime.Remoting;
using System.Text;
using System.Collections;
using System.Reflection;
using Microsoft.Scripting;
using Microsoft.Scripting.Hosting;

namespace DLRHostingTestProject
{
    public class Program : MarshalByRefObject
    {
        public event EventHandler TestEvent;

        static void Main(string[] args)
        {
            ScriptRuntimeSetup scriptRuntimeSetup = new ScriptRuntimeSetup();
            scriptRuntimeSetup.LanguageSetups.Add(new LanguageSetup("IronPython.Runtime.PythonContext, IronPython", "IronPython", new [] { "IronPython", "Python", "py"}, new [] { ".py"}));
            ScriptRuntime scriptRuntime = new ScriptRuntime(scriptRuntimeSetup);
            Program program = new Program();
            scriptRuntime.LoadAssembly(Assembly.LoadWithPartialName("System.Windows.Forms"));
            scriptRuntime.Globals.SetVariable("HostProgram", program);
            ScriptScope scope = scriptRuntime.CreateScope();
            //var retVal = scriptRuntime.GetEngine("py").Execute("1 + 2", scope);
            var scriptSource = scriptRuntime.GetEngine("py").CreateScriptSourceFromString(
@"
a = 1 + 1
b = a + 10

import clr
import HostProgram
from System.Windows.Forms import *
def OnTestEvent(sender, e):
  MessageBox.Show('hauhau')

def Hauhau():
  return True

HostProgram.TestEvent += OnTestEvent
", SourceCodeKind.Statements);

            ScriptScope scriptScope = scriptRuntime.CreateScope();
            var retVal = scriptSource.Execute(scriptScope);
            ObjectHandle funcObj = scriptSource.Engine.GetVariableHandle(scriptScope, "Hauhau");
            retVal = scriptRuntime.GetEngine("py").Operations.Call(funcObj, new object[0]).Unwrap();
            //program.TestEvent(program, EventArgs.Empty);
        }
    }
}