[IronPython] Loading DLL from pyc.py into ScriptEngine

[Michael Foord]

Srivatsn Narayanan wrote:
> 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.
>
>   

Doesn't runtime.LoadAssembly do this?

Michael

> 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: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Tuesday, August 26, 2008 3:12 PM
> To: hellosticky at gmail.com; 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:hellosticky at gmail.com]
>>> 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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>
>
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