从c#执行Python脚本时的长路径

我正在尝试从c#程序运行Python脚本。我使用微软的官方文档:https://code.msdn.microsoft.com/windowsdesktop/C-and-Python-interprocess-171378ee当我将短文件路径作为命令参数传递给我的Python脚本时，它工作得很好。但是当我输入同一个Python脚本的长路径时，进程运行，但脚本不执行。什么错了吗?下面是我使用的代码:

using System;
using System.IO;
using System.Diagnostics;
namespace CallPython
{
    class Program
    {
        static void Main(string[] args)
        {
            // full path of python interpreter 
            string python = @"C:'Anaconda2'python.exe";
            // This path will work
            string myPythonApp = @"C:'MyPython'helloworld.py";
            // This path will cause program to fail, nothing response 
            string myPythonApp = "C:''Users''My Name''Documents''Visual Studio 2015''Projects''My Project Name''helloworld.py";
            // Create new process start info 
            ProcessStartInfo myProcessStartInfo = new ProcessStartInfo(python);
            // make sure we can read the output from stdout 
            myProcessStartInfo.UseShellExecute = false;
            myProcessStartInfo.RedirectStandardOutput = true;
            myProcessStartInfo.Arguments = myPythonApp;
            Process myProcess = new Process();
            // assign start information to the process 
            myProcess.StartInfo = myProcessStartInfo;
            Debug.WriteLine("Calling Python script: " + myPythonApp);
            // start the process 
            myProcess.Start();
            StreamReader myStreamReader = myProcess.StandardOutput;
            string myString = myStreamReader.ReadLine();
            myProcess.WaitForExit();
            myProcess.Close();
            // write the output we got from python app 
            Debug.WriteLine("Value received from script: " + myString);
        }
    }
}