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The module has no attribute 'TCP_KEEPIDLE' #2605

Description

@wumin199

my environment:

  • python 3.13
  • .net: 8
  • win 10

my c# test code is:

            using (Py.GIL())
            {
                dynamic socket = Py.Import("socket");
                _messageService.Message($"socket.SO_KEEPALIVE: {socket.SO_KEEPALIVE}"); // 8

                try
                {
                    var tcp_keepidle = socket.TCP_KEEPIDLE;
                }
                catch (Exception e)
                {
                    Console.WriteLine($"socket.TCP_KEEPIDLE error: {e.Message}");

                }
            }

My question is why it raise exception in var tcp_keepidle = socket.TCP_KEEPIDLE, which shows error socket.TCP_KEEPIDLE error: The module has no attribute 'TCP_KEEPIDLE'.

but if I test in ipython, there is no error here in getting socket.TCP_KEEPIDLE

my python environment setting is

            string py_path = Path.Combine(XSPkgPythonPath) + Path.PathSeparator.ToString();  // my local python packages
            py_path += Path.Combine(PythonEmbededPath, "DLLs") + Path.PathSeparator.ToString();
            py_path += Path.Combine(PythonEmbededPath, "Lib") + Path.PathSeparator.ToString();
            py_path += PythonEmbededPath + Path.PathSeparator.ToString();
            py_path += Path.Combine(PythonEmbededPath, "Lib", "site-packages") + Path.PathSeparator.ToString();
            py_path += Path.Combine(PythonEmbededPath, "Lib", "site-packages", "win32") + Path.PathSeparator.ToString();
            py_path += Path.Combine(PythonEmbededPath, "Lib", "site-packages", "win32", "lib") + Path.PathSeparator.ToString();
            py_path += Path.Combine(PythonEmbededPath, "Lib", "site-packages", "pythonwin");

           Runtime.PythonDLL = Path.Combine(PythonEmbededPath, "python313.dll");
           PythonEngine.PythonHome = PythonEmbededPath;  
           PythonEngine.PythonPath = py_path;
           PthonEngine.Initialize();
           PythonEngine.BeginAllowThreads();

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