topic Re: count of maps in Arcpro project in Python Questions

count of maps in Arcpro project

AmandaYoung_95 — Sun, 27 Mar 2022 22:36:48 GMT

Hello, I have a arcpro project and inside the projects, i have 2 maps and and each map 3 layers. I want to print the number of maps and and number of layers within each maps. i have this so far and i am getting errors. any tips ?

import arcpy

aprx_path = "C:/.colorado.aprx"

aprx = arcpy.mp.ArcGISProject(aprx_path)

maps = aprx.listMaps()

for m in maps:

print(m.count)

Re: count of maps in Arcpro project

DanPatterson — Sun, 27 Mar 2022 23:52:30 GMT

The error message would help.

"C:/.colorado.aprx"

will fail, if that is the path since an aprx can't exist in the root directory nor begin with punctuation.

Also your formatting could use line numbers.

Code formatting ... the Community Version - Esri Community

Re: count of maps in Arcpro project

jcarlson — Mon, 28 Mar 2022 00:35:36 GMT

The listMaps() method gives you a list. Simply call len(maps) to get the count. The code you have written is attempting to access a count property of each individual map and print it, but no such property exists, at least in my maps.

To get your layer counts per map, you just do the same thing, but with the output of the map's listLayers() method.

print(f'{len(aprx.listMaps())} maps in project.') for m in aprx.listMaps(): print(f'{len(m.listLayers())} layers in {m.name}')

Re: count of maps in Arcpro project

jcarlson — Mon, 28 Mar 2022 01:43:24 GMT

Maybe that changed in a recent version?

Seems to work just fine. Not that it's a good idea, but it seems to be "legal".

Re: count of maps in Arcpro project

AmandaYoung_95 — Mon, 28 Mar 2022 02:05:22 GMT

thank you!

Re: count of maps in Arcpro project

DanPatterson — Mon, 28 Mar 2022 02:31:11 GMT

It will come back to haunt people at some point

😉

works for some isn't a good idea