How do I access internal objects from hosted IronPython?

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?

wiz_lee · Accepted Answer · 2016-08-10 09:13:01Z

4

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);

edited Aug 10, 2016 at 9:13

wiz_lee

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answered Nov 15, 2008 at 2:53

Will Dean

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1 Comment

stijn Over a year ago

Note: check github.com/IronLanguages/ironpython2/blob/master/Src/IronPython/…: class members (properties/methds/....) which are internal are also exposed but not by their original name, instead by _<type>__<member> so suppose Feed in the example code above wasn't public, it would be accessed in Python by Global._Global__Feed.

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