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Thursday, August 19, 2010

How to run IronPython code from C#

I’ve just got back from a joint session with Shay at the local .NET user group, I’ve presented IronPython after an excellent IronRuby session done by Shay.

One example I didn’t have the time to show was how to run IronPython script from within C# code. After the session I was asked by a group member to show this exact demo. So without further ado here is how to run IronPython from within the comfort of your C# application:

Step 1: Add references

Add the following assemblies to your project:

  • IronPython.dll
  • IronPython.Modules.dll
  • Microsoft.Scripting.dll

All of the assemblies above are can be found under the IronPython installation folder.

Step 2: write code

Running IronPython is very easy – I’ve decided to create a console application and run an IronPython file that was passed as an argument:

using IronPython.Hosting;
using Microsoft.Scripting.Hosting;

namespace IronPythonFileRunner
{
class Program
{
static void Main(string[] args)
{
ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(null);
ScriptRuntime runtime = new ScriptRuntime(setup);
ScriptEngine engine = Python.GetEngine(runtime);

ScriptSource source = engine.CreateScriptSourceFromFile(args[0]);
ScriptScope scope = engine.CreateScope();
source.Execute(scope);
}
}
}


You can use the same code to embed IronPython by replacing engine.CreateScriptSourceFromFile with engine.CreateScriptSourceFromString.



Introduction to IronPython



Want to learn more about IronPython? take a look the the whole presentation



or read my Getting Started with IronPython posts.





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