hellosticky wrote:
Okay, I tried it but got a Security Exception in 
System.Scripting.Com.ComMetaObject.IsComObject. The permission requested was 
for UnmanagedCode. I'm running in partial trust so obviously I can't be giving 
the code UnmanagedCode privilege. Is there some flag I have to set that says 
I'm in partial trust?

Does any part of your application run in full trust? You can create a runtime with a 'remote' engine inside an appdomain with partial trust. Not something I'm an expert on however...

Michael

FirstPermissionThatFailed:
{<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, 
Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="UnmanagedCode"/>
}

Server stack trace: at System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed)
   at System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Object 
assemblyOrString, PermissionSet granted, PermissionSet refused, 
RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission 
permThatFailed)
   at System.Security.CodeAccessSecurityEngine.CheckSetHelper(PermissionSet 
grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandle rmh, 
Object assemblyOrString, SecurityAction action, Boolean throwException)
   at System.Security.CodeAccessSecurityEngine.CheckSetHelper(CompressedStack 
cs, PermissionSet grants, PermissionSet refused, PermissionSet demands, 
RuntimeMethodHandle rmh, Assembly asm, SecurityAction action)
   at System.Scripting.Com.ComMetaObject.IsComObject(Object obj)
   at System.Scripting.Actions.MetaAction.Bind[T](Object[] args)
   at System.Scripting.Actions.CallSite`1.CreateNewRule(Rule`1 
originalMonomorphicRule, Object[] args)
   at System.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
   at 
System.Scripting.Actions.UpdateDelegates.Update6[T,T0,T1,T2,T3,T4,T5,TRet](CallSite
 site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5)
   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 <module>$2##2(Closure , Scope , LanguageContext )
   at System.Scripting.ScriptCode.InvokeTarget(LambdaExpression code, Scope 
scope)
   at 
System.Scripting.Runtime.OptimizedScriptCode.InvokeTarget(LambdaExpression 
code, Scope scope)
   at System.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink)
   at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
   at DlrHostedProvider.OnRender()

Here is the code I used (approximately):

                StringBuilder sb = new StringBuilder(100);

            using (MemoryStream ms = new MemoryStream())
            {
                using (StringWriter writer = new StringWriter(sb))
                {
                    Assembly assembly = Assembly.Load(AssemblyName);
                    ScriptRuntime runtime = ScriptRuntime.Create();
                    runtime.LoadAssembly(assembly);
                    runtime.IO.SetOutput(ms, writer);
                    ScriptEngine engine = runtime.GetEngine(GetEngineName());
                    ScriptScope scope = engine.CreateScope();
                    string code = string.Format(@"import clr
clr.AddReference(""{0}"")
import {1}
",
     AssemblyName,
     AssemblyType.Replace(".py", "")
     );
                    ScriptSource source = engine.CreateScriptSourceFromString(
                        code,
                        SourceCodeKind.Statements
                    );
                    source.Execute(scope);
                }
            }
            content = sb.ToString();

Thanks,

-----Original Message-----
From: hellosticky [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 6:46 PM
To: 'Srivatsn Narayanan'; 'Discussion of IronPython'
Subject: RE: [IronPython] Loading DLL from pyc.py into ScriptEngine

Thanks, I will try that. Can you explain again how just doing "import test" executes the test.py file that was compiled into the DLL? It's not very logical..

Thanks,
-----Original Message-----
From: Srivatsn Narayanan [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2008 6:34 PM
To: Discussion of IronPython; [EMAIL PROTECTED]
Subject: RE: [IronPython] Loading DLL from pyc.py into ScriptEngine

Also Assembly.Load is not sufficient to be able to import the compiled code. A clr.AddReference needs to be done which publishes the module. The easiest way to do that is include it in the string as Michael pointed out.

ScriptSource source = engine.CreateScriptSourceFromString("import clr;clr.AddReference(\"test.dll\");import test", SourceCodeKind.Statements);

You might need to add the current folder to the path as well before the clr.AddReference.

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Michael Foord
Sent: Tuesday, August 26, 2008 3:12 PM
To: [EMAIL PROTECTED]; Discussion of IronPython
Subject: Re: [IronPython] Loading DLL from pyc.py into ScriptEngine

hellosticky wrote:
I also tried:

            Assembly assembly = Assembly.Load(AssemblyName);
            ScriptRuntime runtime = ScriptRuntime.Create();
            runtime.LoadAssembly(assembly);
            ScriptScope scope = runtime.ExecuteFile("test.py");
            object o = scope.Execute(null);

But that threw a script not found exception saying it could
find the source file for test.py, so it would seem like this wants to recompile it
-----Original Message-----
From: hellosticky [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 26, 2008 5:52 PM
To: IronPython
Subject: Loading DLL from pyc.py into ScriptEngine

Hi,

I created an IronPython DLL with "ipy.exe pyc.py /out:test
/target:dll test.py" which created test.dll. Now, from C#,
I'd like to execute test.py from test.dll. I just opened up
dlr-spec-hosting and there's a CreateScriptSourceFromStream,
but I don't see that in 2.0 Beta 4 bits. Here is where I'm
stuck. How do I get that assembly into the engine and then
execute test.py?
Well - the easiest way is to execute 'import test' after
having added
the assembly. This should execute the code in order to create a module.

ScriptScope scope = engine.CreateScope();
ScriptSource source = engine.CreateScriptSourceFromString("import test",
SourceCodeKind.Statements);
engine.Execute(scope);

There is an API for setting a stream as stdout on an engine -
'runtime.IO.SetOutput'.

Michael

 Also, I'd like to get the output into a
string (I guess I can just redirect Console.Out?)

public string Execute(string assemblyName)
{
    string content = null;

    Assembly assembly = Assembly.Load(assemblyName);
    ScriptRuntime runtime = ScriptRuntime.Create();
    ObjectOperations operations = runtime.CreateOperations();
    ScriptEngine engine = runtime.GetEngine("py");
    // magic..

    return content;
}

Thanks,

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http://www.ironpython.info/
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