Notebook GP tool output parameter has no value

GLIMichael — Tue, 05 Aug 2025 21:02:08 GMT

I have created a simple notebook then published it as a GP tool with 3 output parameters

Notebook code:

from arcgis.gis import GIS import os import json gis = GIS("home") token = gis.session.auth.token op_1 = token op_2 = len(token) op_3 = json.dumps({"url":"some url"}) # Inserted snippet writes output parameter file for web tool execution import os # Only run this snippet during web tool execution when env variable "ENB_JOBID" will be present if "ENB_JOBID" in os.environ: out_param_name = "op_1" out_param_file = os.path.join( os.environ["ENB_JOBID"], "value_" + out_param_name + ".dat") with open(out_param_file, "w") as writer: writer.write(str(op_1)) # Inserted snippet writes output parameter file for web tool execution import os # Only run this snippet during web tool execution when env variable "ENB_JOBID" will be present if "ENB_JOBID" in os.environ: out_param_name = "op_2" out_param_file = os.path.join( os.environ["ENB_JOBID"], "value_" + out_param_name + ".dat") with open(out_param_file, "w") as writer: writer.write(str(op_2)) # Inserted snippet writes output parameter file for web tool execution import os # Only run this snippet during web tool execution when env variable "ENB_JOBID" will be present if "ENB_JOBID" in os.environ: out_param_name = "op_3" out_param_file = os.path.join( os.environ["ENB_JOBID"], "value_" + out_param_name + ".dat") with open(out_param_file, "w") as writer: writer.write(str(op_3))

The issue is my custom output parameter has no values returned but only the parameter name. Unlike the outputPreview default parameter which has an value associated to it:

the outputPreview parameter does have value:

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Notebook GP tool output parameter has no value