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Get the layer ID within a map with Python

FrancisMoisan1

Hi!, I need to get the layer id within a map in ArcGIS Pro. It need to be done with Python, but can't find the way to do it. Any idea ? Impossible ?

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Accepted answers

HannesZiegler

Ah I see, yes you can get that:

aprx = arcpy.mp.ArcGISProject("CURRENT")
m = aprx.listMaps()[0]
lyrs = m.listLayers()
for lyr in lyrs:
    print(lyr.getDefinition("V3").serviceLayerID)

Have a look at CIM access, it's quite useful, there is much more you can do with it besides this

All comments

FrancisMoisan1

That was it! thanks!

HannesZiegler

Ah I see, yes you can get that:

aprx = arcpy.mp.ArcGISProject("CURRENT")
m = aprx.listMaps()[0]
lyrs = m.listLayers()
for lyr in lyrs:
    print(lyr.getDefinition("V3").serviceLayerID)

Have a look at CIM access, it's quite useful, there is much more you can do with it besides this

FrancisMoisan1

Thanks for the info, but that "id" is just the order within the project. I look to get the ID that is attached to the layer within the properties.

HannesZiegler

Take a look at arcpy.mp, I think this gets you what you want:

aprx = arcpy.mp.ArcGISProject("CURRENT")
m = aprx.listMaps()[0]
lyrs = m.listLayers()
[(i, lyr.name) for i, lyr in enumerate(lyrs)]

returns

[(0, 'TestLine'), (1, 'TestPoint'), (2, 'TestPoint_Raster'), (3, 'TestPoly'), (4, 'TestPoint'), (5, 'World Topographic Map'), (6, 'World Hillshade')]

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