Question

I’m hosting IronPython 2.0 in a C#/Winforms application. I would like Python to be able to access various global, static objects in the host application.

As an example, the host application has an internal static class ‘Global’, which contains a number of static public members, which are are the various global objects I’d like to access:

static class Global {   public static FeederSystem Feed ...   public static LightingSystem Lighting ...   public static IOSystem Io ...   ... etc } 

I want to be able to refer to Global.Lighting.xxx in Python code, just as I can in the C# application.

Is there an IronPythonic equivalent of ‘InternalsVisibleTo’ which I can use to allow Python code to see the internal types of the host application? Or do I need to make them all public?

Answer 1

Ok, so I worked this out myself, with the aid of the DLR spec, from here https://github.com/IronLanguages/dlr/blob/master/Docs/dlr-spec-hosting.pdf and by looking at the IP/DLR source.

This isn’t very elegant, and using a ScriptRuntimeSetup object with the PrivateBinding property set True would probably be a neater route than using CreateEngine.

But this one works:

Dictionary<string, object> options = new Dictionary<string, object>(); options.Add('PrivateBinding', true);  _engine = Python.CreateEngine(options);