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Please help with update cursor. So close I can taste it.

Question asked by HKlein on May 16, 2016
Latest reply on May 17, 2016 by curtvprice


I need some help with this script I am developing. I need the update cursor to overwrite the empty LOCALITY values in TWB_Property with the ADMINAREA from TWB_Suburbs that I have turned into a list. I know the code is a little messy and I also can not figure out how to display it all using this forum. Any help will be appreciated. Thank you.


code begins below.


# Import modules
import arcpy
import os

#Set workspace geodatabase
arcpy.env.workspace = "C:\Users\Harry\Documents\Uni\Semester 1 2016\GIS3407 GIS Programming and Visualisation\Assignment 2\Assignment2.gdb"

#Start an editing session
edit = arcpy.da.Editor("C:\Users\Harry\Documents\Uni\Semester 1 2016\GIS3407 GIS Programming and Visualisation\Assignment 2\Assignment2.gdb")
edit.startEditing(False, False)

# Create a list of suburbs
# Create an empty list
localityList = []

#Create the search cursor
rows = arcpy.SearchCursor("TWB_Suburbs")

#Move to the first row
row =

#Append the list with the selected locality name
while row:
    #Move to the next row
    row =

print(str(len(localityList)) + " <-- # of suburbs")

del row, rows
# Make a layer of all of the properties with no locality value
# Create query
nullQuery = '"LOCALITY" = \' \''

# Create layer
nullLayer = arcpy.MakeFeatureLayer_management("TWB_Property", "TWB_Property_Layer", nullQuery)
field = "LOCALITY"
fc = "TWB_Property_Layer"

counter = 0

# Select by location
indexCounter = 0
print localityList
for counter in range(0,len(localityList)):
    localityQuery = '"ADMINAREA" = ' + '\''+ localityList[indexCounter] + '\''
    localityLayer = arcpy.MakeFeatureLayer_management("TWB_Suburbs", "TWB_Sububs_Layer", localityQuery)
    arcpy.SelectLayerByLocation_management("TWB_Property_Layer", "WITHIN", "TWB_Sububs_Layer")

    parcelList = []
    sRows = arcpy.SearchCursor("TWB_Property_Layer")
    sRow =

    while sRow:
            sRow =
    print ("There are " + str(len(parcelList)) + " empty locality fields in " + localityList[indexCounter])
    numberParcel = int(len(parcelList))
    with arcpy.da.UpdateCursor(fc, field) as cursor:
            for uRow in cursor:
                if uRow[0] == '':
                    uRow[0] = str(localityList[indexCounter])

    counter += 1
    indexCounter += 1

del uRow