Hi,
After getting Python code to work successfully, I decided to quickly
import the CLR and access some .Net objects. At this point my code
blew up.
The code I tried to execute was "import clr".
Exception is this:
Unhandled Exception System.NullReferenceException: Object reference
not set to an instance of an object.
at Microsoft.Scripting.Utils.SlowReflectedCaller.InvokeInstance(Object
instance, Object[] args)
at
Microsoft.Scripting.Actions.ActionBinder.UpdateSiteAndExecute[T](CodeContext
context, CallSite`1 site, Object[] args)
at
Microsoft.Scripting.Actions.UpdateDelegates.Update5[T0,T1,T2,T3,T4,TRet](CallSite
site, CodeContext context, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4
arg4)
at Microsoft.Scripting.Actions.DynamicSite`6.Invoke(CodeContext
context, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
at IronPython.Runtime.Importer.Import(CodeContext context, String
fullName, PythonTuple from, Int32 level)
at IronPython.Runtime.Operations.PythonOps.ImportTop(CodeContext
context, String fullName, Int32 level)
at Initialize##1(Closure , CodeContext )
at Microsoft.Scripting.ScriptCode.Run(CodeContext context, Boolean
tryEvaluate)
at Microsoft.Scripting.ScriptCode.Run(Scope scope, Boolean tryEvaluate)
at Microsoft.Scripting.ScriptCode.Run(Scope scope)
at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink)
at Microsoft.Scripting.SourceUnit.Execute(Scope scope)
at Microsoft.Scripting.Hosting.ScriptScope.Execute(String code)
at MyApp.Engine.ScriptExecutor.ExecuteStatement(String code)
After a bit of search, I found that you don't load mscorlib for us.
I have tried 3 different ways to import the assemblies everyone says I
need to load:
ScriptRuntime runtime = ScriptRuntime.Create();
ScriptEngine engine = runtime.GetEngine();
LanguageContext Language =
HostingHelpers.GetLanguageContext(engine);
Language.DomainManager.LoadAssembly(typeof(string).Assembly);
Language.DomainManager.LoadAssembly(typeof(System.Diagnostics.Debug).Assembly);
runtime.LoadAssembly(typeof(string).Assembly);
runtime.LoadAssembly(typeof(System.Diagnostics.Debug).Assembly);
Assembly assem =
Assembly.GetAssembly(Type.GetType("System.Text.StringBuilder"));
engine.Runtime.LoadAssembly(assem);
To execute the code, I do this:
ScriptScope source = Engine.CreateScope();
source.Execute(code);
However nothing, I still get the exception.
Any suggestions on where I am going wrong?
Thanks
Ben Hall
Blog.BenHall.me.uk
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