你会分享你的想法如何从嵌入式Python.Net调用python命令？

Question

我已经使用Python.Net一周了,但我找不到任何示例代码以嵌入方式使用Python.Net,尽管Python.Net源代码有几个嵌入式测试.我搜索了以前的电子邮件列表(Python.Net)中的许多线程,结果不一致且无能为力.

我正在尝试做的是通过Python.Net从python提示符执行python命令(例如'print 2 + 3')后从C#代码获取结果(PyObject po),因为IronPython与我目前的模块没有兼容性使用.

当我从nPython.exe执行它时,它按照我的预期输出5.但是,当我从嵌入式方式从C#运行此代码时.它总是返回'null'.你能告诉我一些如何获得执行结果的想法吗？

谢谢你,Spark.

环境:1.Windows 2008 R2,.Net 4.0.使用Python27编译Python.Net,在VS2012编译UCS2 2. nPython.exe可以正常运行'print 2 + 3'

using NUnit.Framework;
using Python.Runtime;

namespace CommonTest
{
    [TestFixture]
    public class PythonTests
    {
        public PythonTests()
        {

        }
        [Test]
        public void CommonPythonTests()
        {

            PythonEngine.Initialize();

            IntPtr gs = PythonEngine.AcquireLock();
            PyObject po = PythonEngine.RunString("print 2+3");
            PythonEngine.ReleaseLock(gs);

            PythonEngine.Shutdown();
        }
    }
}

Answer 1

似乎PythonEngine.RunString()不起作用.相反,PythonEngine.RunSimpleString()工作正常.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.Reflection;
using Python.Runtime;

namespace npythontest
{
    public class Program
    {
        static void Main(string[] args)
        {
            string external_file = "c:\\\\temp\\\\a.py";

            Console.WriteLine("Hello World!");
            PythonEngine.Initialize();

            IntPtr pythonLock = PythonEngine.AcquireLock();

            var mod = Python.Runtime.PythonEngine.ImportModule("os.path");
            var ret = mod.InvokeMethod("join", new Python.Runtime.PyString("my"), new Python.Runtime.PyString("path"));
            Console.WriteLine(mod);
            Console.WriteLine(ret);
            PythonEngine.RunSimpleString("import os.path\n");
            PythonEngine.RunSimpleString("p = os.path.join(\"other\",\"path\")\n");
            PythonEngine.RunSimpleString("print p\n");
            PythonEngine.RunSimpleString("print 3+2");
            PythonEngine.RunSimpleString("execfile('" + external_file + "')");

            PythonEngine.ReleaseLock(pythonLock);
            PythonEngine.Shutdown();
        }
    }
}