arcpy.management,ApplySymbologyFromLayer works from immediate window, but not when running saved script

[KristieReece]

Attempting to use arcpy.management.ApplySymbologyFromLayer in a python script being run in a model.

Immediate Window:

aprxMap = aprx.listMaps("Layer1")[0]

lyr = aprxMap.listLayers("PointLayer")[0]

arcpy.management.ApplySymbologyFromLayer(lyr, "Q:\GIS_Data\Symbology_Layers\TypeSymbology.lyr")

After reviewing the following link, I attempted that formatting as well within the script, but still not seeing any updates to the symbology. The script runs through with no errors, but nothing changes. Works perfectly in the immediate window though.

Reference the following documentation for creating the script: https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/apply-symbology-from-layer.h...

[RosemaryHatch]

Hi Kristie,

I am having a similar problem (Pro 3.0.2) where the apply symbology works fine running it in a Notebook, but doesn't apply when running from a script tool. Did you ever get a resolution to this? 

Thanks!

Rosemary

[AvinashPatel]

Check and apply the right parameters to update the layer symbology

import arcpy
import sys
def ScriptTool(param0, param1):
# Script execution code goes here
return
# This is used to execute code if the file was run but not imported
if __name__ == '__main__':
# Tool parameter accessed with GetParameter or GetParameterAsText
param0 = arcpy.GetParameterAsText(0)
param1 = arcpy.GetParameterAsText(1)

ScriptTool(param0, param1)
arcpy.management.ApplySymbologyFromLayer(param0, param1, None, "DEFAULT")

# Update derived parameter values using arcpy.SetParameter() or arcpy.SetParameterAsText()

[Ramitha]

When run as a script, arcpy.management.ApplySymbologyFromLayer returns a new layer but does not modify any of it's inputs. Something like this should do the job?

# Apply symbology changes to lyr, which will create a new finalLayer:
finalLayer = arcpy.management.ApplySymbologyFromLayer(lyr, "Q:\GIS_Data\Symbology_Layers\TypeSymbology.lyr")
# Remove the original lyr from aprxMap
aprxMap.removeLayer(lyr)
# Add the new layer that has the symbology applied
aprxMap.addLayer(finalLayer[0])

[MK13]

This worked for me. Thank you!! I wish it was part of the documentation.