C# “如何发布模块”__主要的；在托管IronPython 2.0时？

我正在尝试将

[rlcompleter][1]

功能添加到我的in分支中

但是，我在线路上遇到了一个难题：

import __main__

在

rlcompleter.py

中。这是因为我没有这样的模块。我一直在搜索/筛选IronPython2.0代码库，试图找出如何发布模块

似乎我可以从

IronPython.Runtime.PythonContext

的实例中使用

PublishModule（字符串名称，PythonModule模块）

方法来实现这一点。但我在以下方面遇到了问题：

• 获取

  PythonContext

  实例
• 获取

  PythonModule

  实例

我拥有的是一个

ScriptEngine

和一个

ScriptScope

。我希望将范围发布为模块

\uuuu main\uuuu

。据我所知，范围已经附加到模块，但我不知道如何访问它

下面是我想将其结合在一起的代码要点：

    /// <summary>
    /// Set up an IronPython environment - for interactive shell or for canned scripts
    /// </summary>
    public void SetupEnvironment(ScriptEngine engine, ScriptScope scope)
    {                        
        // add variables from Revit
        scope.SetVariable("__revit__", _commandData.Application);
        scope.SetVariable("__commandData__", _commandData);
        scope.SetVariable("__message__", _message);
        scope.SetVariable("__elements__", _elements);
        scope.SetVariable("__result__", (int)Result.Succeeded);                        

        // add preconfigures variables
        scope.SetVariable("__vars__", RevitPythonShellApplication.GetVariables());

        /* register scope as __main__ module here?! */         

        // add the search paths
        AddSearchPaths(engine);
    }

//
///设置IronPython环境-用于交互式shell或罐装脚本
/// 
公共void设置环境（ScriptEngine引擎、ScriptScope范围）
{                        
//从Revit添加变量
scope.SetVariable（“\uuuu revit\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
scope.SetVariable（“\uuuuCommandData\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
scope.SetVariable（“\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
scope.SetVariable（“\uuuu元素”、\u元素）；
SetVariable（“\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
//添加预配置变量
scope.SetVariable（“\uuuu vars\uuuuuuu”，RevitPythonShellApplication.GetVariables（））；
/*在此处将作用域注册为_u主_;模块？！*/
//添加搜索路径
添加搜索路径（引擎）；
}

没关系，我仔细阅读了IronPython 2.0.3源代码，得出了以下结论：

• PythonContext

  是一个

  Microsoft.Scripting.Runtime.LanguageContext

• ScriptEngine

  的语言上下文可以通过

  Microsoft.Scripting.Hosting.Providers.HostingHelpers.GetLanguageContext（ScriptEngine）

  方法获得
• 如果您有一个用于python的

  ScriptEngine

  ，那么您就可以强制转换

哇。现在我终于有了我的

PythonContext

！所以我要打电话给

CreateModule

和

PublishModule

，在喝茶之前回家

等等。否。首先，

CreateModule

的第二个参数是

Microsoft.Scripting.Runtime.Scope

。我们只有一个

Microsoft.Scripting.Hosting.ScriptScope

。它恰好包含一个

范围

，但其访问器是

内部

。所以我们需要先做一些反思

下面是我提出的解决方案补充的示例代码：

/// <summary>
/// Set up an IronPython environment - for interactive shell or for canned scripts
/// </summary>
public void SetupEnvironment(ScriptEngine engine, ScriptScope scriptScope)
{
    // add variables from Revit
    scriptScope.SetVariable("__revit__", _commandData.Application);
    scriptScope.SetVariable("__commandData__", _commandData);
    scriptScope.SetVariable("__message__", _message);
    scriptScope.SetVariable("__elements__", _elements);
    scriptScope.SetVariable("__result__", (int)Result.Succeeded);           

    // add preconfigures variables
    scriptScope.SetVariable("__vars__", RevitPythonShellApplication.GetVariables());

    // add the current scope as module '__main__'
    var languageContext = Microsoft.Scripting.Hosting.Providers.HostingHelpers.GetLanguageContext(engine);
    var pythonContext = (IronPython.Runtime.PythonContext)languageContext;
    var module = pythonContext.CreateModule(null, GetScope(scriptScope), null, IronPython.Runtime.ModuleOptions.None);            
    pythonContext.PublishModule("__main__", module);

    // add the search paths
    AddSearchPaths(engine);
}

/// <summary>
/// Be nasty and reach into the ScriptScope to get at its private '_scope' member,
/// since the accessor 'ScriptScope.Scope' was defined 'internal'.
/// </summary>
private Microsoft.Scripting.Runtime.Scope GetScope(ScriptScope scriptScope)
{
    var field = scriptScope.GetType().GetField(
        "_scope", 
        System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
    return (Microsoft.Scripting.Runtime.Scope) field.GetValue(scriptScope);
}

//
///设置IronPython环境-用于交互式shell或罐装脚本
/// 
公共void设置环境（ScriptEngine引擎、ScriptScope ScriptScope）
{
//从Revit添加变量
SetVariable（“\uuuu revit\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
SetVariable（“\uuuuCommandData\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
SetVariable（“\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
SetVariable（“\uuuu元素”、\u元素）；
SetVariable（“\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
//添加预配置变量
SetVariable（“_变量”，RevitPythonShellApplication.GetVariables（））；
//将当前作用域添加为模块“\uuuu main\uuuuu”
var languageContext=Microsoft.Scripting.Hosting.Providers.HostingHelpers.GetLanguageContext（引擎）；
var pythonContext=（IronPython.Runtime.pythonContext）languageContext；
var module=pythonContext.CreateModule（null，GetScope（scriptScope），null，IronPython.Runtime.ModuleOptions.None）；
pythonContext.PublishModule（“\uuuuu main\uuuuuuuuuuuuuuuuuuuuuuuuuuuu”，模块）；
//添加搜索路径
添加搜索路径（引擎）；
}
/// 
///下流，进入ScriptScope获取其私有的“\u scope”成员，
///因为访问器“ScriptScope.Scope”定义为“内部”。
/// 
私有Microsoft.Scripting.Runtime.Scope GetScope（ScriptScope ScriptScope）
{
var field=scriptScope.GetType（）.GetField(
“_范围”，
System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance）；
返回（Microsoft.Scripting.Runtime.Scope）字段.GetValue（scriptScope）；
}

---

我故意保留类型中的所有名称空间。我发现IronPython代码有点难以理解，并且经常对在何处定义感到困惑。

我遇到了同样的问题。我试图使用ScriptEngine.Execute*来运行代码。使用ScriptEngine.CreateScriptSourceFromFile然后调用ExecuteProgram解决了这个问题

查看以下完整解决方案：

注意：IronPython 2.7使整个过程更容易：

public void SetupEnvironment(ScriptEngine engine, out ScriptScope scope)
{
    scope = IronPython.Hosting.Python.CreateModule(engine, "__main__");
    return;
}