如何关闭执行脚本的IronPython引擎的输入流?

var engine = IronPython.Hosting.Python.CreateEngine();                
var scope = engine.CreateScope();

// my implementation of System.IO.Stream
var stream = new ScriptOutputStream(engine);
engine.Runtime.IO.SetOutput(stream, Encoding.UTF8);
engine.Runtime.IO.SetErrorOutput(stream, Encoding.UTF8);
engine.Runtime.IO.SetInput(stream, Encoding.UTF8);

var script = engine.CreateScriptSourceFromString(source, SourceCodeKind.Statements);
script.Execute(scope);

变量 source 是包含以下内容(python语句)的字符串:

import code
code.interact(None, None, 
        {
            '__name__' :  '__console__', 
            '__doc__'  :   None, 
        })

Read

    /// <summary>
    /// Read from the _inputBuffer, block until a new line has been entered...
    /// </summary>
    public override int Read(byte[] buffer, int offset, int count)
    {

        if (_gui.IsDisposed)
        {
            return 0; // msdn says this indicates the stream is closed
        }

        while (_completedLines.Count < 1)
        {
            // wait for user to complete a line
            Application.DoEvents();
            Thread.Sleep(10);
        }
        var line = _completedLines.Dequeue();
        return line.Read(buffer, offset, count);
    }

成员变量 _completedLines 排队等候 MemoryStream 表示用户迄今为止输入的线的对象。 _gui 是对windows窗体的引用—当它被释放时,我希望IronPython引擎停止执行 code.interact() .

返回 0 阅读 方法不起作用( 阅读 刚刚又打了一次电话)。从 documentation of Read 阅读

我也试过回来 ^Z (0x1a)和 ^D (0x04)英寸 的缓冲区,因为它们在控制台上用于退出解释器,但这根本不起作用。。。