Xdata from python custom script
You can add xdata to any AutoCAD object. It cannot be done inside the Python code though if that's what you are asking. The xdata will not reflect any 'stretched' dimensions, so I don't think it's too useful. There's been several threads already on how to extract parametric dimensions - do a search and I'm sure you'll find them. In short, the only way to reliably do this is via .NET code. There's an example on the forum somewhere.
