Python Toolbox / regular Toolbox -- postExecute not working

[Yanu]

Hey guys,

I am dealing with unable to use postExecute method within Python Toolbox or atbx toolbox.

class Tool(object‌‌
    def __init__(self‌‌):
        """Define the tool (tool name is the name of the class)."""
        self.label = "Tool"
        self.description = ""
        self.canRunInBackground = False

    def getParameterInfo(self‌‌):
        """Define parameter definitions"""

        param1 = arcpy.Parameter(
            displayName="Dos",
            name="param1",
            datatype="DEFeatureClass",
            parameterType="Required",
            direction="Input")

        param2 = arcpy.Parameter(
                displayName="Output Features",
                name="out_features",
                datatype="GPFeatureLayer",
                parameterType="Derived",
                direction="Output")
           
        return [param1, param2]
   
    def execute(self, parameters, messages‌‌):
        """The source code of the tool."""

        param1 = parameters[0].valueAsText
        gdb  = "gdb_path"
        out =  f"{gdb}/layer2"

        arcpy.CopyFeatures_management(param1, out)

        arcpy.SetParameter(1, out)
        arcpy.AddMessage("Tool has finished executing222")
        return

    def postExecute(self, parameters, messages‌‌):
        """This method takes place after outputs are processed and
        added to the display."""
        arcpy.AddMessage("Tool has finished executing!!!!!!!!!!!!!!!!!!!!")
        try:
            project = arcpy.mp.ArcGISProject('CURRENT')
            active_map = project.activeMap
           
            if active_map:
                out_layer = active_map.listLayers(os.path.basename(self.params[1].valueAsText))[0]
               
                symbology = out_layer.symbology
                symbology.updateRenderer('SimpleRenderer')
                symbology.renderer.symbol.applySymbolFromGallery('Airport')
                symbology.renderer.symbol.size = 12
                out_layer.symbology = symbology
               
        except Exception:
            pass

        return

I've used example from documentation, has anyone had any success with using postExecute?

Do I need to execute it someway?

Code is basic, just for testing purpose.

regards,
Yanu

[DanPatterson]

What does the toolbox look like?  That is where you execute the tool from within your project's toolbox

[Yanu]

Toolbox is like this:

import arcpy
import os

class Toolbox(object):
    def __init__(self):
        """Define the toolbox (the name of the toolbox is the name of the
        .pyt file)."""
        self.label = "Toolbox"
        self.alias = "toolbox"

        # List of tool classes associated with this toolbox
        self.tools = [Tool]

Default, postExecute is also from documentation.

They suggested using postExecute:
here Bug with symbology 

[DanPatterson]

Yes that is the code, but have you added the toolbox to your project and tried to execute it?

Catalog, Project tab, Toolboxes with my toolbox which has a tool with a toolset and a tool shown

which you can launch and run to test whether it works or check its properties

for tool validation... (postExecute is commented out here since none is needed)

[Yanu]

Thank you for your reply Dan.

Yes, I've added this Python Toolbox to project.

I tried also setting up ATBX from scartch and testing if postExecute will run.

Nothing happens...

[Luke_Pinner]

postExecute is new. Are you using ArcGIS Pro 3.x? 

[Yanu]

I know, I am using 3.1.1.
I've checked patch notes, 0 bugs...

[DanPatterson]

Which leaves the thread you posted BUG-000155515 for ArcGIS Pro (esri.com)

so I would open an Issue with Tech Support so they can investigate why it isn't working.... I don't use postExecute in my toolboxes

[FrancescaCella]

Hi Yanu, Dan and Luke
I'm using ArcGIS Pro 3.3 and have same problems with "postExecute" routine.
It seems do nothing.
Any news from the BUGS?

[DanPatterson]

BUG-000155515 for ArcGIS Pro (esri.com)  still lists the status as "known limitation"

so contacting Tech Support would be your best option