I have been racking my brain for over a week now and no matter how I format my code, the arcpy.CalculateField_management line just will not run for me.
The parts of the code for the operation are below.
It throws
I've tried writing out Cellname1, I've tried getting it through arcpy.listfields. I've tried single quotes, double quotes, quoting the quotes...you name it; I think I've tried it. If anyone has any idea why this is happening, I would greatly appreciate some assistance as I am at my wits end here. I know the field name exists as the 'print MyField.name' is derived from the listfields function, and gives me "Cellname1" as my result. PLEASE HELP!
The parts of the code for the operation are below.
Code:
arcpy.env.overwriteOutput = True
env.workspce = "F:/GIS Data/Drivetesting.gdb"
#mxd = arcpy.mapping.MapDocument("CURRENT") --used in the Arcpy environment
#df = arcpy.mapping.ListDataFrames(mxd, "New Data Frame") --used in the Arcpy environment
Field = "PCode1"
FC = "F:/GIS Data/Drivetesting.gdb/Carrier/Phone"
MyField = Myfield = arcpy.ListFields(FC)[24]
arcpy.MakeFeatureLayer_management(FC,"FC_lyr")
---------> tons of geoprocessing going on right here, but not included as not relevant to question (and saves space!)
mylist = []
# Iterate through the rows in the cursor
for item in Scursor:
a = (item.Frequency, item.PCode1,)
mylist.append(a)
mylist.sort()
mylist.reverse()
del mylist[1:]
applist = [x[1] for x in mylist]
applist.append(CellIDs.UNIQUE_ID)
applist.append(CellIDs.CellID)
print applist
PCode1 = str(applist[0])
PCode2 = str(applist[1])
PCode3 = str(applist[2])
Unitname = str(applist[3])
Columnname = '"Cellname1"'
print Cellname
print MyField.name
arcpy.SelectLayerByAttribute_management("FC_lyr","SUBSET_SELECTION",' "PN1" = ' + PCode1 + " or \"PN1\" = " + PCode2 + " or \"PN1\" = " + PCode3)
arcpy.CalculateField_management("FC_lyr",Columnname,Unitname)Code:
ERROR 000728: Field "Cellname1" does not exist within table
Failed to execute (CalculateField).