Script arguments and Embedded IronPython

Question

I have an embedded scripting engine in my C# application that uses IronPython 2. I create the Python runtime and add a few classes to the global namespace so that the script

Answer 1

When you create the engine, you can add an "Arguments" option the contains your arguments:

IDictionary<string, object> options = new Dictionary<string, object>();
options["Arguments"] = new [] { "foo", "bar" };
_engine = Python.CreateEngine(options);

Now sys.argv will contain ["foo", "bar"].

You can set options["Arguments"] to anything that implements ICollection<string>.

Answer 2

sys.argv is going to eventually be returning the actual parameters passed into the hosting app. Here's a few ways to solve this:

1. Rewrite your script to accept Global Variables, then use ScriptScope.SetVariable
2. Run the script, but rely on it to actually return you a class, which you can invoke methods on (much easier in 4.0 with dynamic keyword)
3. Override sys.argv with your own implementation (this is a dynamic language after all!)