updateCursor not working

MorganTitus — Thu, 27 Oct 2011 21:46:12 GMT

Hi there, I am trying to do a select layer by location and for the selected records populate a specific field with a value of "Y". Then, for all fields that were not selected, I want to tag with a "N". I can get the "Y"'s to populate but once I start doing the looping logic with the update cursor I either get an error or the loop keeps on going...

here is my code: thanks for any help!!

# Import system modules
import sys, string, os, arcgisscripting

# Create the Geoprocessor object
gp = arcgisscripting.create(9.3)

# Set the workspace
workspace = gp.GetParameterAsText(0)
gp.workspace = workspace

# Load required toolboxes...
gp.AddToolbox("C:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Data Management Tools.tbx")

# Variables

InputFC = gp.GetParameterAsText(1)
IntersectFeat = gp.GetParameterAsText(2)
Field = gp.GetParameterAsText(3)

# Make a layer from the feature class
gp.MakeFeatureLayer(InputFC,"Layer")

gp.MakeFeatureLayer(IntersectFeat,"Layer2")

# Process: Select Layer By Location...
gp.SelectLayerByLocation_management("Layer", "INTERSECT", "layer2", "500 Meters", "NEW_SELECTION")

gp.CalculateField_management("Layer", Field, "\"Y\"")

FLlist = gp.ListFields("Layer")
print str(FLlist)
for fl in FLlist:
    row = gp.UpdateCursor(fl)
    row = rows.Next()

    while row:
        if row.EXTERNALCOATING == "Y":
            pass

        else:
            #row.EXTERNALCOATING == "N"
            row.setvalue("EXTERNALCOATING", "\"N\"")
            rows.updaterow(row)
            row = rows.Next()
            break

del row
del rows

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updateCursor not working