Summary
The Describe function returns the following properties for CAD Drawing Datasets. Dataset Properties are also supported.
A CAD Drawing Dataset returns a dataType of "CadDrawingDataset".
Properties
| Property | Explanation | Data Type | 
| is2D (Read Only) | Indicates whether a CAD dataset is 2D | Boolean | 
| is3D (Read Only) | Indicates whether a CAD dataset is 3D | Boolean | 
| isAutoCAD (Read Only) | Indicates whether a CAD dataset is an AutoCAD file | Boolean | 
| isDGN (Read Only) | Indicates whether a CAD dataset is a MicroStation file | Boolean | 
Code sample
The following stand-alone script displays properties for a CAD Drawing Dataset.
import arcpy 
# Create a describe object 
# 
desc = arcpy.Describe("C:/data/arch.dgn")
# Print Cad Drawing Dataset properties 
# 
print "%-12s %s" % ("is2D:", desc.is2D)
print "%-12s %s" % ("is3D:", desc.is3D)
print "%-12s %s" % ("isAutoCAD:", desc.isAutoCAD)
print "%-12s %s" % ("isDGN:", desc.isDGN)