How can I redirect the stdout of IronPython in C#?

Question

I have the following:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button3_Click(objec         


        

Answer 1

Your example is close to working.

The problem you saw is because sys.stdout=my.write should be sys.stdout=my. It also appears that Python expects to find a boolean softspace attribute.

I have made these two changes in the code below. Hopefully this should now work as you expected.

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button3_Click(object sender, EventArgs e)
    {
        try
        {
            var strExpression = @"
import sys
sys.stdout=my
print 'ABC' ";

            var engine = Python.CreateEngine();
            var scope = engine.CreateScope();
            var sourceCode = engine.CreateScriptSourceFromString(strExpression);
            scope.SetVariable("my", this);
            var actual = sourceCode.Execute(scope);
            textBox1.Text += actual;
        } catch (System.Exception ex) {
            MessageBox.Show(ex.ToString());
        }
    }

    public bool softspace;

    public void write(string s)
    {
        textBox1.Text += s;
    }
}