Question

我正在尝试将IronPython与monodroid一起使用（使用Android 4手机），这样我就可以在我的项目中执行python脚本。我的代码基于此处的示例：Instantiating a python class in C#

我已将dll包含在Android平台目录中（使用IronPython-2.7.2rc1）并在项目目录中有一个python脚本（现在是一个名为Calculator的测试脚本，从该示例链接）

以下是我的C＃代码：

using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using IronPython;
using IronPython.Hosting;
using Microsoft.Scripting;
using Microsoft.Scripting.Hosting; 
namespace PythonTest
{
    [Activity (Label = "PythonTest", MainLauncher = true)]
    public class Activity1 : Activity
    {
        int count = 1;
        protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            // Set our view from the "main" layout resource
            SetContentView (Resource.Layout.Main);

            ScriptEngine engine = Python.CreateEngine();
            ScriptSource source = engine.CreateScriptSourceFromFile("Calculator.py");
            ScriptScope scope = engine.CreateScope();
            ObjectOperations op = engine.Operations;
            source.Execute(scope); // class object created
            object klaz = scope.GetVariable("Calculator"); // get the class object
            object instance = op.Invoke(klaz); // create the instance
            object method = op.GetMember(instance, "add"); // get a method
            int result = (int)op.Invoke(method, 4, 5); // call method and get result (9)


            var aLabel = new TextView (this);
            //aLabel.Text = result.ToString();

            // Get our button from the layout resource,
            // and attach an event to it
            Button button = FindViewById<Button> (Resource.Id.myButton);

            button.Click += delegate {
                button.Text = string.Format ("{0} clicks!", count++); };
        }
    }
}

它构建没有错误。当我尝试在手机上运行时，我收到这些错误并且程序崩溃（手机返回主屏幕）

I/monodroid-gc( 2110): environment supports jni NewWeakGlobalRef

I/MonoDroid( 2110): UNHANDLED EXCEPTION: System.NotImplementedException: The requested feature is not implemented.

I/MonoDroid( 2110): at Microsoft.Scripting.PlatformAdaptationLayer.OpenInputFileStream (string) <0x0001c>

I/MonoDroid( 2110): at Microsoft.Scripting.FileStreamContentProvider/PALHolder.GetStream (string) <0x0002b>

I/MonoDroid( 2110): at Microsoft.Scripting.FileStreamContentProvider.GetStream () <0x00023>

I/MonoDroid( 2110): at Microsoft.Scripting.Runtime.LanguageBoundTextContentProvider.GetReader () <0x00027>

I/MonoDroid( 2110): at Microsoft.Scripting.SourceUnit.GetReader () <0x00023>

I/MonoDroid( 2110): at IronPython.Compiler.Parser.CreateParserWorker (Microsoft.Scripting.Runtime.CompilerContext,IronPython.PythonOptions,bool) <0x000bf>

I/MonoDroid( 2110): at IronPython.Compiler.Parser.CreateParser (Microsoft.Scripting.Runtime.CompilerContext,IronPython.PythonOptions) <0x0001f>

I/MonoDroid( 2110): at IronPython.Runtime.PythonContext.ParseAndBindAst (Microsoft.Scripting.Runtime.CompilerContext) <0x0005f>

I/MonoDroid( 2110): at IronPython.Runtime.PythonContext.CompilePythonCode (Microsoft.Scripting.SourceUnit,Microsoft.Scripting.CompilerOptions,Microsoft.Scripting.ErrorSink) <0x0008f>

I/MonoDroid( 2110): at IronPython.Runtime.PythonContext.CompileSourceCode (Microsoft.Scripting.SourceUnit,Microsoft.Scripting.CompilerOptions,Microsoft.Scripting.ErrorSink) <0x0002b>

I/MonoDroid( 2110): at Microsoft.Scripting.SourceUnit.Compile (Microsoft.Scripting.CompilerOptions,Microsoft.Scripting.ErrorSink) <0x0005b>

I/MonoDroid( 2110): at Microsoft.Scripting.SourceUnit.Execute (Microsoft.Scripting.Runtime.Scope,Microsoft.Scripting.ErrorSink) <0x00057>

I/MonoDroid( 2110): at Microsoft.Scripting.SourceUnit.Execute (Microsoft.Scripting.Runtime.Scope) <0x00027>

I/MonoDroid( 2110): at Microsoft.Scripting.Hosting.ScriptSource.Execute (Microsoft.Scripting.Hosting.ScriptScope) <0x00043>

I/MonoDroid( 2110): at PythonTest.Activity1.OnCreate (Android.OS.Bundle) <0x000c3>

I/MonoDroid( 2110): at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) <0x00057>

I/MonoDroid( 2110): at (wrapper dynamic-method) object.5a9608db-a03f-4bd2-831d-6cb21e250354 (intptr,intptr,intptr) <0x00033>

E/mono    ( 2110): 

E/mono    ( 2110): Unhandled Exception: System.NotImplementedException: The requested feature is not implemented.

E/mono    ( 2110):   at Microsoft.Scripting.PlatformAdaptationLayer.OpenInputFileStream (System.String path) [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at Microsoft.Scripting.FileStreamContentProvider+PALHolder.GetStream (System.String path) [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at Microsoft.Scripting.FileStreamContentProvider.GetStream () [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at Microsoft.Scripting.Runtime.LanguageBoundTextContentProvider.GetReader () [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at Microsoft.Scripting.SourceUnit.GetReader () [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at IronPython.Compiler.Parser.CreateParserWorker (Microsoft.Scripting.Runtime.CompilerContext context, IronPython.PythonOptions options, Boolean verbatim) [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at IronPython.Compiler.Parser.CreateParser (Microsoft.Scripting.Runtime.CompilerContext context, IronPython.PythonOptions options) [0x00000] in <filename unknown>:0 

E/mono    ( 2110):   at IronPython.Ru

有谁知道如何解决这个问题？谢谢。

Answer 1

看起来像一个直接的错误（Android的PAL不完整），看起来你已经打开了一个问题（谢谢！）。

IronPython的支持很早，因此测试和报告问题的人越多越好。

将IronPython与monodroid一起使用 - NotImplementedError

1 个答案: