[IronPython] no module named re

[Slide]

I am embedding IronPython in my app to allow some script capabilities.
I have the following code:

_content = content.Trim();

            string script = string.Format(@"
import re

def interp(string, variables):
    globals = globals()
    for item in re.findall(r'\$\(([^{{]*)\)', string):
        string = string.replace('$(%s)' % item,
                            str(eval(item, globals, variables)))
    return string

{0}
", _content);

            try
            {
                _engine = Python.CreateEngine();
                List<string> searchPaths = new
List<string>(_engine.GetSearchPaths());
                searchPaths.Add(

Path.GetDirectoryName(Assembly.GetEntryAssembly().Location));

                _engine.SetSearchPaths(searchPaths);
                ScriptSource source =
                    _engine.CreateScriptSourceFromString(script);

                _script = source.Compile();
            }
            catch(SyntaxErrorException ex)
            {
                ExceptionOperations eo =
                    _engine.GetService<ExceptionOperations>();
                throw new ScriptedStringParseException(
                    eo.FormatException(ex), -1);
            }

Then later I call:

_script.DefaultScope.SetVariable("context",
                GenerateParameters(context));
            return _script.Execute<string>();

The problem I am running into is that _script.Execute is that I am
getting an import exception on the "import re"

re is a builtin module, so I am not sure why that is happening, does
the IronPython.Modules.dll need to be in the DLLs directory? I don't
remember having this issue previously.

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