dynamic - mono 2.8 支持 'dynamic' 关键字吗？

Question

我使用书中的代码在 mono 2.8 上测试了 IronPython Professional IronPython p.315 list 15-3。

using System;
using IronPython.Hosting;
using IronPython.Runtime;
using Microsoft.Scripting.Hosting;

namespace Method2
{
    class Program
    {
        static void Main(string[] args)
        {
            // Obtain the runtime.
            var IPY = Python.CreateRuntime();

            // Create a dynamic object containing the script.
            dynamic TestPy = IPY.UseFile("TestClass.py");

            // Execute the __test__() method.
            TestPy.__test__();
        }
    }
}

我发现它编译正常，并且在 Windows 7 上运行没有问题，而 mono 2.8 却给出了以下错误消息。

Unhandled Exception: Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 
`Microsoft.Scripting.Hosting.ScriptScope' does not contain a definition for `__test__'
at (wrapper dynamic-method) object.CallSite.Target (System.Runtime.CompilerServices.Closure,System.Runtime.CompilerServices.CallSite,object) 
at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid1
(System.Runtime.CompilerServices.CallSite,object) 
at Method2.Program.Main (string[]) 

I thought Mono 2.8 supports C# 4.0 which has the dynamic keyword, but I see that the 'dynamic' keyword is not fully supported with mono.

Is this a bug of Mono 2.8?

ADDED

This is the python script.

# The class you want to access externally.
class DoCalculations():

    # A method within the class that adds two numbers.
    def DoAdd(self, First, Second):

        # Provide a result.
        return First + Second

# A test suite in IronPython.
def __test__():

    # Create the object.
    MyCalc = DoCalculations()

    # Perform the test.
    print MyCalc.DoAdd(5, 10)

    # Pause after the test session.
    raw_input('\nPress any key to continue...')

这是我使用的命令

dmcs Program.cs /r:System.Core /r:IronPython.dll /r:IronPython.Modules.dll /r:Microsoft.Dynamic.dll /r:Microsoft.Scripting.dll /r:Microsoft.CSharp.dll

它编译得很好，但当我运行执行二进制文件时它仍然中断。我需要将所有 dll 放在执行二进制文件所在的同一目录中吗？

Answer 1

您收到 Microsoft.CSharp.RuntimeBinder.RuntimeBinderException 的事实意味着动态关键字起作用了。您遇到的问题是 IPY.UseFile("TestClass.py");返回一个看不到您的测试方法的 ScriptScope。所以问题在于你的 python 源代码或者你如何将 IronPython 包含在 mono 中。