First steps with Python.NET

[burque505]

Python.NET update for me, at least: the binary format serializer problem has FINALLY been dealt with by the pythonnet people. I used Tools-Nuget-Update for the PythonNet nupkg to 3.10.rc0. Now this code will work, with no shutdown problem.
 

Code:

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/*/ nuget PyNet\PythonNet; /*/
using Python.Runtime;

PythonEngine.Initialize();
using (Py.GIL()) {
    // NOTE: this doesn't validate input
    if (!dialog.showInput(out string firstCsharpNumber, "Enter first number:")) return;
    PyObject firstNumber = Convert.ToDouble(firstCsharpNumber).ToPython();
    
    if (!dialog.showInput(out string secondCsharpNumber, "Enter second number:")) return;
    PyObject secondNumber = Convert.ToDouble(secondCsharpNumber).ToPython();
    
    dynamic scope = Py.CreateScope();
    scope.Exec("def add(a, b): return a + b");
    var sum = scope.add(firstNumber, secondNumber);
    print.it("Sum: " + (int)sum);
    Py.GIL().Dispose();
}
PythonEngine.Shutdown();