winform（C＃）和python

Question

我正在开发一个窗口表单应用程序（C＃），它应该启动外部进程并在表单应用程序中显示来自exe的一些结果和/或错误消息。 我似乎无法在表单应用程序和python中创建的外部进程（exe）之间形成命名管道连接。 exe启动并正常工作，但它似乎没有保持命名管道连接。所以，我无法从exe中获得任何消息。
exe是用pyinstaller和命名管道连接似乎与窗口控制台应用程序配对时工作得很好，即我可以从exe回到控制台应用程序的消息。

Consolse App

下面的脚本可以从exe到控制台返回消息。

namespace pipeConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            NamedPipeClientStream pipeClient = new NamedPipeClientStream("teropipe");
            Console.Write("Attempting to connect to the pipe...");
            System.Diagnostics.Process.Start(@"my\path\to\external\app\tempp.exe");
            pipeClient.Connect();
            Console.WriteLine("Connected to the pipe");
            Console.WriteLine("There are currently {0} pipe server instances open.", pipeClient.NumberOfServerInstances);
            StreamWriter writer = new StreamWriter(pipeClient);
            StreamReader reader = new StreamReader(pipeClient);
            string temp;
            while ((temp = reader.ReadLine()) != null)
            {
                Console.WriteLine("Received from server: {0}", temp);
            }
            Console.Write("Press Enter to continue..");
            Console.ReadLine();
        }
    }

但是当我在窗体应用程序上尝试类似的东西时，我无法从python服务器获取任何内容

表单应用

虽然我对表单应用程序使用了类似的方法，但不会返回任何消息。实际上，看起来命名的管道连接不能保持打开以便表单进行通信。

namespace pipeDemoForm
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void okayButton_Click(object sender, EventArgs e)
        {
            NamedPipeClientStream pipeClient = new NamedPipeClientStream("teropipe");
            //MessageBox.Show("attempting to connect");
            System.Diagnostics.Process.Start(@"my\path\to\external\app\tempp.exe");
            pipeClient.Connect();
            string numb = pipeClient.NumberOfServerInstances.ToString();
            MessageBox.Show("There are currently {0} pipe server instances open", numb);
            if (pipeClient.IsConnected)
            {
                MessageBox.Show("There are currently {0} pipe server instances open", pipeClient.NumberOfServerInstances.ToString());
            }
        }
    }
}

Python脚本 - tempp.exe

以下是python脚本，我已经使用pyinstaller打包到onefile exe中。

import win32pipe
import win32file

def process():
    pipe_handle = win32pipe.CreateNamedPipe(r'\\.\pipe\teropipe',
                              win32pipe.PIPE_ACCESS_DUPLEX,
                              win32pipe.PIPE_TYPE_MESSAGE | win32pipe.PIPE_WAIT,
                  1,65536,65536,300,None)
    win32pipe.ConnectNamedPipe(pipe_handle, None)
   # business logic
    ..................
    #write some output to the form app
   win32file.WriteFile(pipe_handle,"some string return from above")