topic Re: Arcpy passed map parameter not working in Python Questions

Arcpy passed map parameter not working

B_Brooks — Fri, 12 Mar 2021 18:17:48 GMT

Hello, I'm having some struggles with my script. In my model, I set the first parameter to be the map to convert.

import arcpy

map1 = arcpy.GetParameter(0)

arcpy.AddMessage(map1.name)

And I get the error: AttributeError: ValueObject: Get attribute name does not exist

The documentation for the map class says that "name" is a property, so why isn't it working?

~Brandon

Re: Arcpy passed map parameter not working

B_Brooks — Fri, 12 Mar 2021 18:20:35 GMT

To be clear, the parameter data type in the tool properties is "Map"

When I just say "arcpy.AddMessage(map1)" there are no errors and the message is the name of the map.

When I try "arcpy.AddMessage(type(map1)) is says "<class 'geoprocessing value object'>"

Re: Arcpy passed map parameter not working

B_Brooks — Fri, 12 Mar 2021 18:56:00 GMT

So I have figured out that the map class in the arcpy mapping module is not the same as the map data type, but that's as far as I've been able to get with the documentation. Confirmation that my approach is wrong, but so far no idea on next steps.

Re: Arcpy passed map parameter not working

B_Brooks — Fri, 12 Mar 2021 19:37:18 GMT

Here is the solution:

import arcpy

aprx = arcpy.mp.ArcGISProject("CURRENT")

mapName = arcpy.GetParameterAsText(0)

map1 = aprx.listMaps(mapName)[0]

arcpy.AddMessage(map1.name)