ScriptEngine engine = Python.CreateEngine();
ScriptScope scope = engine.CreateScope();
scope.SetVariable("y", yNumber);
engine.ExecuteFile("D://hello2.py", scope);
dynamic xNumber = scope.GetVariable("x");
dynamic zNumber = scope.GetVariable("z");
Console.WriteLine("Сумма {0} и {1} равна: {2}", xNumber, yNumber, zNumber);

ScriptEngine engine = Python.CreateEngine();

ScriptEngine engine = EngineSelector.GetEngine(scriptExt).CreateEngine();

Dictionary<string, ScriptEngine> EngineSelector = new Dictionary<string, ScriptEngine>();

Dictionary<string, ScriptEngine> EngineSelector = new Dictionary<string, ScriptEngine>();
EngineSelector.Add(".py", Python.CreateEngine());
EngineSelector.Add(".rb", Ruby.CreateEngine());