topic Re: Save layer file to data source path in Python Questions

Save layer file to data source path

FabioTuccini — Wed, 03 Jul 2024 05:26:01 GMT

Hello,

I'm trying to write a code to save the layer file (.lyrx) for each layer present in my project in the same folder of the data source.

At the moment I can only one by one, with the following code:

import arcpy
arcpy.mp.ArcGISProject('CURRENT')
arcpy.management.SaveToLayerFile('layer','output_path', 'RELATIVE')

But I wold like to create a iteration with all layers in my project. It's important that each .lyrx will be saved in the data source path.

Someone can help please

Re: Save layer file to data source path

simoxu — Wed, 03 Jul 2024 07:52:34 GMT

You are almost there, just put your code in the layer iteration:

m = aprx.listMaps("map name")[0] for lyr in m.listLayers(): if !lyr.isGroupLayer: arcpy.management.SaveToLayerFile(lyr,'output_path', 'RELATIVE')

Something like above, but I haven't tested code myself.

Re: Save layer file to data source path

FabioTuccini — Wed, 03 Jul 2024 08:58:11 GMT

Thanks a lot, yes we are almost there but still missing somenthing.

I have modified the code as follow:

import arcpy
aprx = arcpy.mp.ArcGISProject('CURRENT')
m = aprx.listMaps('Map') [0]
for lyr in m.listLayers():
if lyr.isGroupLayer:
arcpy.management.SaveToLayerFile(lyr,'output_path', 'RELATIVE')

The layer iteration is working but is replacing the outputfile with the same name.

I would like to get the output file name with the layer name and in the same folder of the source data. Is it possible?

Re: Save layer file to data source path

FabioTuccini — Wed, 03 Jul 2024 10:16:13 GMT

OK, I'm very close!

I've modified the code as follow:

import arcpy
aprx = arcpy.mp.ArcGISProject('CURRENT')
m = aprx.listMaps('Map') [0]
for lyr in m.listLayers():
if lyr.isFeatureLayer:
arcpy.management.SaveToLayerFile(lyr,lyr.dataSource + lyr.name, 'RELATIVE')

But I get the following error message:

Traceback (most recent call last):
File "<string>", line 6, in <module>
File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 11180, in SaveToLayerFile
raise e
File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 11177, in SaveToLayerFile
retval = convertArcObjectToPythonObject(gp.SaveToLayerFile_management(*gp_fixargs((in_layer, out_layer, is_relative_path, version), True)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\_base.py", line 512, in <lambda>
return lambda *args: val(*gp_fixargs(args, True))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid.
ERROR 000725: Output Layer: Dataset C:\Users\Fabio\Documents\ArcGIS\Projects\PRY002_WTL\03_Shape\Routes\Rerouting\VAB15_A.shpVAB15_A already exists.
Failed to execute (SaveToLayerFile).

Re: Save layer file to data source path

FabioTuccini — Wed, 03 Jul 2024 11:58:32 GMT

Finally i found the solution. Maybe to someone can help, here the final code:

import arcpy
import os
aprx = arcpy.mp.ArcGISProject('CURRENT')
m = aprx.listMaps('Map') [0]
arcpy.env.overwriteOutput = True
for lyr in m.listLayers():
if lyr.isFeatureLayer:
arcpy.management.SaveToLayerFile(lyr,os.path.dirname(lyr.dataSource)+"\\"+lyr.name, 'RELATIVE')