C#

public byte[] GetFile(string fileName) {
    FileStream fs = null;
    try {
        // Do some stuff that CANNOT be done after acquiring the lock
        lock (s_Lock) {
            fs = new FileStream(..., FileShare.None, ...);
            byte[] result = new byte[fs.Length];
            fs.Read(result, 0, fs.Length);
            return result;
        }
    } finally {
        if (fs != null)
            fs.Close();
    }
}
public bool DeleteFile(string fileName) {
    lock (s_Lock) {
        File.Delete(fileName);
    }
}

<br />
using System.Reflection;<br />
using IronPython.Hosting;<br />
<br />
public class Actor<br />
{<br />
    private string objectID;<br />
    private int count;<br />
<br />
    public void AddItem(string objectID, int count)<br />
    {<br />
         Console.WriteLine(string.Format("{0}, {1}", objectID, count));<br />
         this.objectID = objectID;<br />
         this.count = count;<br />
    }<br />
}<br />
<br />
public class ActorScript<br />
{<br />
    protected delegate void AddItem(string objectID, int count);<br />
    protected Dictionary<string, object> locals = new Dictionary<string,object>();<br />
    protected Actor actor;<br />
<br />
    ActorScript(Actor actor)<br />
    {<br />
        this.actor = actor;<br />
        Initiate();<br />
    }<br />
<br />
    private void Initiate()<br />
    {<br />
         MethodInfo methodInfo = typeof(Actor).GetMethod("AddItem", BindingFlags.Public | BindingFlags.Instance);<br />
         this.locals.Add("AddItem", Delegate.CreateDelegate(typeof(AddItem), this.actor, methodInfo));<br />
<br />
        //string[] arr = new string[] {"AddItem", "DropItem", "GetItemCount"};<br />
        //for (int i = 0; i < arr.Length; i++)<br />
        //{<br />
            //MethodInfo methodInfo = typeof(Actor).GetMethod(arr[i], BindingFlags.Public | BindingFlags.Instance);<br />
             //this.locals.Add(arr[i], Delegate.CreateDelegate( ??? , this.actor, methodInfo));<br />
        //}<br />
    }<br />
<br />
    public void Run(string fileName)<br />
    {<br />
         PythonEngine engine = new PythonEngine();<br />
         engine.ExecuteFile(fileName, this.engine.DefaultModule, this.locals);<br />
    }<br />
}<br />
<br />
This is the script file:<br />
<br />
ItemScript.py<br />
AddItem("Sword", 2)<br />