使用进程从C＃调用script.py，但获得错误导入模块，例如cv2

Question

I'm writing some python code include open-cv. And now ı have to add some UI and ım using c# but when ı try to call.py

ı tried to use the process to call my .py file

string python = @"C:\Windows.old\Users\giris\AppData\Local\Programs\Python\Python37-32\python.exe";

            string myPythonApp = "C://Users//giris//Desktop//staj_proje_son//main.py";

            string ogrencioptik = textBox2.Text;
            string cevapkagidi = textBox1.Text;
            ProcessStartInfo myProcessStartInfo = new ProcessStartInfo(python);

            myProcessStartInfo.UseShellExecute = false;
            myProcessStartInfo.RedirectStandardOutput = true;
            myProcessStartInfo.Arguments = myPythonApp + " " + ogrencioptik + " " + cevapkagidi;
            Process myProcess = new Process();
            myProcess.StartInfo = myProcessStartInfo;

            myProcess.Start();
            StreamReader myStreamReader = myProcess.StandardOutput;
            string myString = myStreamReader.ReadLine();
            myProcess.WaitForExit();
            myProcess.Close();

Python file must work fine and it must write the results to a .txt file.

here is the error:

File "C://Users//giris//Desktop//staj_proje_son//main.py", line 1, in <module>
    import cv2
ModuleNotFoundError: No module named 'cv2'

Answer 1

If you added python to path, you can instead of calling process on python, call it on cmd (assuming you are running on Windows), as you would run python script from cmd: "python .../myscript.py args"

string cmdArguments = "/c \"python " + myApp+ " " + sScriptARGS + "\"";

        ProcessStartInfo start = new ProcessStartInfo();
        start.FileName = "cmd.exe";
        start.Arguments = cmdArguments;
        start.RedirectStandardOutput = true;// Any output, generated by application will be redirected back
        start.RedirectStandardError = true; // Any error in standard output will be redirected back (for example exceptions)
        using(Process process = Process.Start(start)){...}

Or you could try using Microsoft.Hosting.Scripting with IronPython. :) good luck