How do I stop a process if results of a layer is empty?

StephenEldridge

Been looking at all the Python libraries I can find and still have not been able to figure this out.  I have script that creates a layer but sometimes the end result of that later returns no records.  How do I tell Python to stop the process if this layer is empty?

 

Thanks

StephenEldridge

I found another example that I am trying as well which worked for half of what I am doing so I made need to do 2 seperate scripts to make it work the way I want it to work.

# Name: DeleteFeatures_Example2.py

# Description: Delete features from a feature class based on an expression

# Import system modules

import arcpy

from arcpy import env

# Set environment settings

env.workspace = "C:/data/airport.gdb"

# Set local variables

inFeatures = "parcels"

outFeatures = "C:/output/output.gdb/new_parcels"

tempLayer = "parcelsLayer"

expression = arcpy.AddFieldDelimiters(tempLayer, "PARCEL_ID") + " = 'Cemetery'"

try:

    # Execute CopyFeatures to make a new copy of the feature class

    arcpy.CopyFeatures_management(inFeatures, outFeatures)

    # Execute MakeFeatureLayer

    arcpy.MakeFeatureLayer_management(outFeatures, tempLayer)

    # Execute SelectLayerByAttribute to determine which features to delete

    arcpy.SelectLayerByAttribute_management(tempLayer, "NEW_SELECTION",

                                            expression)

    # Execute GetCount and if some features have been selected, then

    #  execute DeleteFeatures to remove the selected features.

    if int(arcpy.GetCount_management(tempLayer).getOutput(0)) > 0:

        arcpy.DeleteFeatures_management(tempLayer)

        

except Exception as e:

    # If an error occurred, print line number and error message

    import traceback

    import sys

    tb = sys.exc_info()[2]