SD 4.4.2 - WPF IronPython app -> No module named wpf

Hi

I have just installed SharpDevelop 4.4.2 to try IronPython, and it seems to work very nice running Python Windows Forms applications, but when I try even the most simple "Hello World" Python WPF application I can't run it, I get an "No module named wpf" error on the first line (import wpf).

Do I need to install or setup something more ?.

Thank you.