Civil 3D Dynamo Send Command Using Python Multiple DWGs

Civil 3D
15

You could use the AcadDocument.SendCommand() method

Edit: See comments here

Add the following code after the main imports

clr.AddReference("Autodesk.AutoCAD.Interop")
from Autodesk.AutoCAD.Interop import *

acaddoc = AcadDocument.ActiveDocument

Note: I have not tested this so you may have to do some debugging