Hfrhyu

Assuming that I have an idealized .mxd TOC structure with group layers that contain group and subgroup layers which have the same name like in the following example:

Layers

• 
  GroupLayer1
  
  
  • SubGroupLayer1
    
    
    • Raster1.tif
    
    
    • Raster33.tif
    
    
  
  
  • SubGroupLayer2
    
    
    • Raster44.tif
    
    
  
  


• 
  GroupLayer2
  
  
  • SubGroupLayer1
    
    
    • Raster2.tif
    
    
    • Raster4.tif
    
    
  
  
  • SubGroupLayer2
    
    
    • Raster7.tif
    
    
  
  

Is it possible to add data using an 'absolute' layer path with ArcPy?

For example, if I want to add a raster layer SampleRaster.tif to the following place GroupLayer2/SubGroupLayer2 : how could I do this in ArcPy?

I know how to add a group layer and then add the specific layer (e.g. solution in this question Adding new group layer with ArcPy?) but have not found a solution how to add it if two layers have the same name.

My code that I have so far is pasted below

 # add rasters to .mxd project
 import arcpy

 arcpy.env.workspace = r'D:DataRasters'
 rasters = arcpy.ListRasters("*", "TIF")

 for raster in rasters:
 # add raster to .mxd
 mxd = arcpy.mapping.MapDocument(r"D:DataTest.mxd")
 df = arcpy.mapping.ListDataFrames(mxd)[0]

 # here I need to list the layers in the subgroup "SubGroupLayers2", but what to do when the subgroup layers names are equal? Is there a way to indicate an absolute path (e.g. Layers/GroupLayer2/SubGroupLayer2 here?)
 targetGroupLayer = arcpy.mapping.ListLayers(mxd, "SubGroupLayer2", df)[0]

 # I am then using another layer to apply the symbology to the raster and update the layer
 newlayer = arcpy.mapping.Layer(raster)
 newlayer.visible = False
 arcpy.mapping.AddLayerToGroup(df, targetGroupLayer, newlayer, "BOTTOM")
 updateLayer = arcpy.mapping.ListLayers(mxd, raster, df)[0]
 sourceLayer = arcpy.mapping.Layer(r"D:DataColormap.lyr")
 arcpy.mapping.UpdateLayer(df, updateLayer, sourceLayer, True) 
 mxd.save()

You can get the group/subgroup path using the longName attribute:

...

targetGroupLayer = arcpy.mapping.ListLayers(mxd, "SubGroupLayer2", df)[0]

print targetGroupLayer.longName

...

So you could loop through your targetGroupLayer list and create an if/then statement, based on the .longName, to find and insert layers to the specific group/subgroup.