Use arcpy to check whether feature class geometry has ZM

Question

I am looking for a programmatic way using arcpy to determine whether or not a feature class (FC) has Z and/or M geometry. It's easy enough to get the geometry type using the code below, but this just tells me the base type (point, line, polygon) and does not have details about ZM. I would rather not have to create a cursor and read the actual feature geometries (it should not be necessary, since the entire FC must have the same geometry).

import arcpy
desc = arcpy.Describe("D:\\MyData\\Scratch.gdb\\polyzm")
geometryType = desc.shapeType
print geometryType

which returns this result:

Polygon

Answer 1

The Describe object also has the hasM and hasZ properties which:

Indicates if the geometry is m-value enabled

and

Indicates if the geometry is z-value enabled

respectively.