来自C#(使用SciPy)的IronPython调用因ImportException失败:"没有名为mtrand的模块"

Question

我有一个python库,我试图通过来自C#应用程序的IronPython(v2.7 RC1 [2.7.0.30])调用来使用.该库非常广泛地使用NumPy和SciPy,当从命令行使用ipy运行时,它可以与SciPy和NumPy for .NET一起使用,如下所示:

ipy.exe -X:Frames file_from_lib_importing_numpy.py

但是,当我使用下面的代码从C#调用IronPython时,会抛出异常:

ImportException
"No module named mtrand"
   at Microsoft.Scripting.Runtime.LightExceptions.CheckAndThrow(Object value)
   at IronPython.Runtime.Operations.PythonOps.ImportStar(CodeContext context, String fullName, Int32 level)
   at Microsoft.Scripting.Interpreter.ActionCallInstruction3.Run(InterpretedFrame frame)
   ...
   at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink)
   at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
   at Microsoft.Scripting.Hosting.ScriptEngine.ExecuteFile(String path)
   at Microsoft.Scripting.Hosting.ScriptRuntime.ExecuteFile(String path)
   at Microsoft.Scripting.Hosting.ScriptRuntime.UseFile(String path)
   ...

调用IronPython的C#代码(它的一部分)如下:

    ScriptEngine _engine;

    var opts = new Dictionary<string, object>();
    opts["Frames"] = ScriptingRuntimeHelpers.True;
    _engine = Python.CreateEngine(opts);

    var sp = _engine.GetSearchPaths();
    sp.Add(@"c:\Program Files\IronPython 2.7");
    sp.Add(@"c:\Program Files\IronPython 2.7\DLLs");
    sp.Add(@"c:\Program Files\IronPython 2.7\Lib");
    sp.Add(@"c:\Program Files\IronPython 2.7\Lib\site-packages");
    sp.Add(_path);
    _engine.SetSearchPaths(sp);

    var _runtime = _engine.Runtime;
    var scope = _runtime.ExecuteFile(Path.Combine(_path, "mytest.py"));

出于测试目的,我正在执行以下文件'mytest.py':

    import sys
    sys.path.append(r'c:\Program Files\IronPython 2.7')
    sys.path.append(r'c:\Program Files\IronPython 2.7\DLLs')
    sys.path.append(r'c:\Program Files\IronPython 2.7\Lib')
    sys.path.append(r'c:\Program Files\IronPython 2.7\Lib\site-packages')

    import os, os.path
    cd = os.path.dirname(__file__)
    if not cd in sys.path:
        sys.path.append(os.path.dirname(__file__))

    import numpy as np
    print 'OK'

    x = np.array([1,2])
    print x

哪个在第12行导入numpy失败为np'.问题是__init__.pyIronPython 2.7\Lib\site-packages \numpy\random \中的文件包含以下行

from mtrand import *

哪个失败了.请注意,mtrand不是模块,而是目录.我想不出别的什么我可以尝试使这项工作,所以我非常感谢你的任何帮助.非常感谢你.

Answer 1

不是最好的灵魂,但它的作用对我来说:

import sys
sys.path.append(r'c:\Program Files (x86)\IronPython 2.7')
sys.path.append(r'c:\Program Files (x86)\IronPython 2.7\DLLs')
sys.path.append(r'c:\Program Files (x86)\IronPython 2.7\Lib')
sys.path.append(r'c:\Program Files (x86)\IronPython 2.7\Lib\site-packages')

import clr
clr.AddReference('mtrand.dll')

import numpy
import scipy

print numpy.__version__
print scipy.__version__

我希望它有所帮助.