IronPython: Changing behaviour of SourceCodeKind.InteractiveCode

问题

I can execute IronPython in C# with:

ScriptSource Source = PyEngine.CreateScriptSourceFromString(Code, SourceCodeKind.InteractiveCode);
CompiledCode Compiled = Source.Compile();
Compiled.Execute(PyScope);

This means that I can execute A=1 and then A. This will then output 1.

Is there a way I can override this behaviour so A will be redirected to a C# function, say CustomPrinter before printing? I know I can 'overload' the print function as described by https://stackoverflow.com/a/13871861/1447657 but I feel there should be a better way.

Edit 1

Thanks for your answers but I was slightly unclear about my aims.

I know I can redirect output with PyEngine.Runtime.IO.SetOutput(stream, encoding) but I wish to retrieve the output value before it has been cast to a string. So if A=[1,2,3] IronPython.Runtime.List instead of a string is recieved.

I'm not sure if this is even possible without changing the IronPython source code or using a Regex to wrap variables on their own (like A) in the CustomPrinter.Write function

回答1:

You can PyEngine.Runtime.IO.SetOutput(stream, encoding) to direct what would go to stdout to a custom stream (see also .SetErrorOutput for stderr and .SetInput for stdin).

回答2:

you can implement file object (in this case you need only write method accepting string) and assign it to sys.stdout.

public class PythonFile {
    public void write(string s) {
    }
}

and later:

PyEngine.GetSysModule().SetVariable("stdout", new PythonFile());

来源：https://stackoverflow.com/questions/21737913/ironpython-changing-behaviour-of-sourcecodekind-interactivecode

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ironpython