我正在尝试从C＃运行Python脚本。这个Python脚本需要使用music21模块。单独运行脚本（将分数设置为某些东西）工作正常，但我从IronPython获得了KeyNotFoundException，其中message =＆＃34; abcFormat＆＃34;和StackTrace =
at IronPython.Runtime.PythonDictionary.GetItem(Object key)
at IronPython.Runtime.PythonDictionary.get_Item(Object key)
at IronPython.Runtime.Operations.PythonOps.ImportStar(CodeContext context, String fullName, Int32 level)
at Microsoft.Scripting.Interpreter.ActionCallInstruction`3.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run1[T0,TRet](T0 arg0)
at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope)
at IronPython.Runtime.PythonContext.InitializeModule(String fileName, ModuleContext moduleContext, ScriptCode scriptCode, ModuleOptions options)
at IronPython.Runtime.PythonContext.CompileModule(String fileName, String moduleName, SourceUnit sourceCode, ModuleOptions options, ScriptCode& scriptCode)
at IronPython.Runtime.Importer.LoadModuleFromSource(CodeContext context, String name, String path)
at IronPython.Runtime.Importer.LoadPackageFromSource(CodeContext context, String name, String path)
at IronPython.Runtime.Importer.LoadFromDisk(CodeContext context, String name, String fullName, String str)
at IronPython.Runtime.Importer.ImportFromPathHook(CodeContext context, String name, String fullName, List path, Func`5 defaultLoader)
at IronPython.Runtime.Importer.ImportFromPath(CodeContext context, String name, String fullName, List path)
at IronPython.Runtime.Importer.ImportTopAbsolute(CodeContext context, String name)
at IronPython.Runtime.Importer.ImportModule(CodeContext context, Object globals, String modName, Boolean bottom, Int32 level)
at IronPython.Modules.Builtin.__import__(CodeContext context, String name, Object globals, Object locals, Object fromlist, Int32 level)
at Microsoft.Scripting.Interpreter.FuncCallInstruction`7.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run7[T0,T1,T2,T3,T4,T5,T6,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6)
at IronPython.Runtime.Importer.ImportLightThrow(CodeContext context, String fullName, PythonTuple from, Int32 level)
at IronPython.Runtime.Operations.PythonOps.ImportStar(CodeContext context, String fullName, Int32 level)
at Microsoft.Scripting.Interpreter.ActionCallInstruction`3.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
at IronPython.Compiler.PythonScriptCode.Run(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope)
at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink)
at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
at Microsoft.Scripting.Hosting.ScriptEngine.ExecuteFile(String path, ScriptScope scope)
at Performpreter.PythonInterface.GetKey(String score) in C:\Users\Eric\Documents\Visual Studio 2015\Projects\Performpreter\Performpreter\PythonInterface.cs:line 48
at Performpreter.Test.IronTest.Test() in C:\Users\Eric\Documents\Visual Studio 2015\Projects\Performpreter\Performpreter\Test\IronTest.cs:line 17
at Performpreter.Form1.button1_Click(Object sender, EventArgs e) in C:\Users\Eric\Documents\Visual Studio 2015\Projects\Performpreter\Performpreter\Form1.cs:line 22
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Performpreter.Program.Main() in C:\Users\Eric\Documents\Visual Studio 2015\Projects\Performpreter\Performpreter\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
这是C＃代码：
var options = new Dictionary<string, object>();
options["Frames"] = true;
options["FullFrames"] = true;
ScriptEngine engine = Python.CreateEngine(options);
var paths = engine.GetSearchPaths();
paths.Add(@"C:\Users\Eric\AppData\Local\Programs\Python\Python36-32\Lib\site-packages");
paths.Add(@"C:\Users\Eric\AppData\Local\Programs\Python\Python36-32\Lib\site-packages\music21");
paths.Add(@"C:\Users\Eric\Documents\IronPython-2.7.7-win\IronPython-2.7.7\Lib");
engine.SetSearchPaths(paths);
ScriptScope ss = engine.CreateScope();
ss.SetVariable("score", "bach/bwv65.2.xml");
engine.ExecuteFile(Config.PYTH_FOLDER + "getkey.py", ss); //<--- throws error
这是Python脚本getkey.py：
import sys
from music21 import *
def getKey():
s = corpus.parse(score)
k = s.analyze('key')
return k
print (score)
getKey()
music21文件夹的目录布局为：
music21
|
|--------__init__.py
|-------- abcFormat
| |
| |----__init__.py
|
|---------corpus
| |
| |----__init__.py
etc...