Close the Python.NET script engine

[Davider]

The following code, using the Python.NET component to execute a Python script, can be executed successfully.
However, the script engine is not closed. Here is a demonstration of the operation.


Where should this line of code be placed? I'm stuck!
PythonEngine.Shutdown(); 

Thanks in advance for any suggestions and help.
 

Code:

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// script "PythonNET_Test.cs"
/*/ r %dll%\PyNet\Python.Runtime.dll /*/

using System;
using Python.Runtime;

class Program
{
    public static void Main()
    {
        Person someone = new Person();
        someone.FirstName = "John";
        someone.LastName = "Doe";
        someone.Age = 21;
        object age = PythonInterop.RunPythonCodeAndReturn(@"
someone.Age=someone.Age+3;
hisAge=someone.Age
", someone, "someone", "hisAge");
        Console.WriteLine("His age has changed to: " + age.ToString());
    }

    public class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public int Age { get; set; }
    }
    
    public class PythonInterop
    {
        public static void Initialize()
        {
            string pythonDll = @"C:\Users\YourUserNameHere\AppData\Local\Programs\Python\Python38\python38.dll";
            Environment.SetEnvironmentVariable("PYTHONNET_PYDLL", pythonDll);
            
            PythonEngine.Initialize();
        }
        
        public static object RunPythonCodeAndReturn(string pycode, object parameter, string parameterName, string returnedVariableName)
        {
            object returnedVariable = new object(); 
            Initialize(); 
            using (Py.GIL()) 
            {
                using (var scope = Py.CreateScope()) 
                {
                    scope.Set(parameterName, parameter.ToPython());
                    scope.Exec(pycode);

                    returnedVariable = scope.Get<object>(returnedVariableName); 
                    return returnedVariable;
                }
            }
            PythonEngine.Shutdown(); 
        }
    }
}