IronPython ScriptRuntime equivalent to CPython PYTHONPATH

Question

The following import works inside ipy.exe prompt but fails using IronPython ScriptRuntime inside a C# 4.0 program.

import ConfigParser

C# code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using IronPython.Hosting;
using Microsoft.Scripting.Hosting;

namespace CSharpDynamic
{
    class Program
    {
        static int Main(string[] args)
        {
            ScriptRuntime python = Python.CreateRuntime();
            dynamic dynamicIni =
python.UseFile(@"c:\test\WebCast\DynamicIni.py");

            return 0;
        }
    }
}

CPython uses PYTHONPATH environment variable. How do I configure this in IronPython when using ScriptRuntime?

Tom E · Accepted Answer · 2009-11-18 15:33:19Z

14

You want to use GetSearchPaths and SetSearchPaths on your engine object. You could parse the env variable of your choice and populate the search path when you initialize your engine. For example:

var engine = Python.CreateEngine(DefaultEngineOptions());
var paths = engine.GetSearchPaths();
paths.Add("c:\\my_libs");
engine.SetSearchPaths(paths);

answered Nov 18, 2009 at 15:33

Tom E

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1 Comment

Jeff Hardy Over a year ago

The IronPython interpreter (ipe.exe) uses the IRONPYTHONPATH environment variable. It may be a good idea to read that into SetSearchPaths as well, depending on the application.

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