ArcGIS 10.3.x Python tool script - Error for required parameters when disabled

FrancescoTonini2 — Tue, 28 Jun 2016 15:50:37 GMT

In the python script tool I am programming (see code below), I am using a simple boolean checkbox to enable/disable certain parameters in the script GUI. However, even though the parameters get disabled correctly (greyed out, see screen capture), when I add points to my featureSet parameter interactively and click on OK to run, I receive error 000735 that the parameters I disabled are "required", impeding the run.

Is there any workaround to having to set inTable, X_field, and Y_field as "Optional"? In other words, can those 3 appear as Required and be correctly disabled without impeding script execution?

Code:

# Import all necessary module dependencies
import arcpy

import os

import sys

arcpy.env.overwriteOutput = True
arcpy.env.outputCoordinateSystem = arcpy.SpatialReference(3857)

def DrawSystems():

   # Local variable:
   out_layer = "Systems_lyr"

   # Get the value of the input parameter
   isChecked = arcpy.GetParameter(0)

inTable = arcpy.GetParameterAsText(1)

X_field = arcpy.GetParameterAsText(2)

Y_field = arcpy.GetParameterAsText(3)

inFeatureSet = arcpy.GetParameterAsText(4)

arcpy.SetProgressorLabel('Creating System Components ...')

arcpy.AddMessage('Creating System Components ...')

if isChecked == False:

if inTable or inTable != "#":

try:

              # Process: Make XY Event Layer (temporary)
              arcpy.MakeXYEventLayer_management(table=inTable,
                                                                                 in_x_field=X_field, in_y_field=Y_field,
                                                                                out_layer=out_layer)

except Exception:

e = sys.exc_info()[1]

arcpy.AddError('An error occurred: {}'.format(e.args[0]))

else:

if inFeatureSet or inFeatureSet != "#":

try:

# Process: Make Feature Layer (temporary)
arcpy.MakeFeatureLayer_management(in_features=inFeatureSet, out_layer=out_layer)

except Exception:

e = sys.exc_info()[1]

             arcpy.AddError('An error occurred: {}'.format(e.args[0])) # Process: Create Feature Class from Feature Layer

          #### Create Feature Class & Add Coordinates ####
          try:

# Process: Copy Feature Class
outSystems_fc = os.path.join(arcpy.env.scratchGDB, "Systems")

outFC = arcpy.CopyFeatures_management(out_layer, outSystems_fc)

arcpy.SetProgressorLabel('Adding XY Coordinates ...')

arcpy.AddMessage('Adding XY Coordinates ...')

# Process: Add Coordinates
arcpy.AddXY_management(outFC)

except:

arcpy.AddIDMessage("ERROR", 930)

#### Set Parameters ####

arcpy.SetParameter(5, outFC)

if __name__ == '__main__':

DrawSystems()

Re: ArcGIS 10.3.x Python tool script - Error for required parameters when disabled

WesMiller — Thu, 30 Jun 2016 13:58:42 GMT

You could try to use a python tool box and if isChecked == False: then parameterType = "Optional"

Customizing tool behavior in a Python toolbox—Help | ArcGIS for Desktop

Re: ArcGIS 10.3.x Python tool script - Error for required parameters when disabled

FrancescoTonini2 — Thu, 30 Jun 2016 14:00:56 GMT

Wes, I thought that parameterType is a read-only property...so that would not work if that is the case.

topic ArcGIS 10.3.x Python tool script - Error for required parameters when disabled in Geoprocessing Questions

ArcGIS 10.3.x Python tool script - Error for required parameters when disabled

Re: ArcGIS 10.3.x Python tool script - Error for required parameters when disabled

Re: ArcGIS 10.3.x Python tool script - Error for required parameters when disabled