pythonnet not working and no error displayed

Question

I am trying to use pythonnet to run a python script from a .Net application , i installed pip , python and the project on git hub , also i did all the installation steps mentioned on https://github.com/pythonnet/pythonnet/wiki/Installation and the troubleshooting steps on https://github.com/pythonnet/pythonnet/wiki/Troubleshooting-on-Windows,-Linux,-and-OSX

when i created a windows application to run a python script, the project was built successfully , however when i click the button to execute a python script the application will exit showing the following output :

The program '[30236] WindowsFormsApplication1.vshost.exe: Program Trace' has exited with code 0 (0x0). The program '[30236] WindowsFormsApplication1.vshost.exe' has exited with code 1 (0x1).

the code i am using to execute the python file :

 try
            {
                using (Py.GIL())
                {
                    var test1 = "";

                    dynamic np = Py.Import("sum");
                    Console.WriteLine(np.cos(np.pi * 2));
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

when i tried to check where exactly the project stops , it was in the Python.RunTime project => runtime.cs =? Initialize() .

P.S : i am using pythonnet because i am using python 3.X and IronPython does not support this version.

Is there additional troubleshooting steps i must do ? or any more reference i should add ?