IronPython无法运行导入numpy的脚本 [英] IronPython unable to run script that imports numpy

问题描述

免责声明-我对Python不熟悉.我是一位C#开发人员，他编写了一个应用程序来使用IronPython执行Python脚本(由他人编写).到目前为止，这些脚本只需要使用import math，但是我们的一位用户要求该应用程序支持Numpy.

Disclaimer - I'm not familiar with Python. I'm a C# developer who has written an application to execute Python scripts (authored by others) using IronPython. These scripts have so far have only needed to use import math, but one of our users has asked for the application to support for Numpy.

我已经在PC上安装了Numpy(使用"numpy-1.9.2-win32-superpack-python2.7.exe"文件)，该文件在\ Lib \ site-packages下创建了一个numpy文件夹.我编写了两行Python脚本来测试Numpy的可访问性:-

I have installed Numpy on my PC (using the 'numpy-1.9.2-win32-superpack-python2.7.exe' file), which has created a numpy folder under \Lib\site-packages. I've written a two-line Python script to test that Numpy is accessible:-

import numpy as np
x = np.array([1,2])

我从C#中运行脚本:-

I run the script from within C#:-

var engine = Python.CreateEngine();
engine.SetSearchPaths(new Collection<string>(new[]
{
    @"C:\Python27", 
    @"C:\Python27\DLLs", 
    @"C:\Python27\Lib", 
    @"C:\Python27\Lib\site-packages", 
    @"C:\Python27\Lib\site-packages\numpy",
    @"C:\Python27\Lib\site-packages\numpy\core"
}));
var scope = engine.CreateScope();
var scriptSource = engine.CreateScriptSourceFromString(
    _myPythonScript, 
    SourceCodeKind.Statements);
scriptSource.Execute(scope);

尽管设置了所有这些搜索路径，但最后一行抛出ImportException:-

Despite setting all those search paths, the last line throws an ImportException:-

无法从numpy.core导入多数组

cannot import multiarray from numpy.core

请注意，此这样的文章是类似的，但是没有帮助-第一个答案提到了一个"mtrand.dll"文件，我似乎没有.

Note that this SO article is similar, but didn't help - the first answer mentions an 'mtrand.dll' file, which I don't seem to have.

我想念什么?

推荐答案

您遇到了IronPython的主要限制-它不支持CPython的C-API.因此，您需要使用pythonnet:

You hit the main limitation of IronPython - it does not support C-API of CPython. Hence you need to use pythonnet:

https://github.com/pythonnet/pythonnet

您可以尝试numpy的纯python实现:

You can try pure python implementation of numpy:

https://github.com/wadetb/tinynumpy

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