arcpy.da.UpdateCursor too few parameters

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03-16-2016 10:40 AM
JustinWolff
Occasional Contributor

I'm running ArcGIS 10.3 and have a geodatabase with multiple feature datasets each containing multiple feature classes.  Each feature class has multiple string type fields containing <Null> values.  I want to change the <Null> values to "TBD" (without the quotation marks).

I feel I'm very close, but at 'for row in cursor:' I'm receiving the error "Too few parameters.  Expected 1."  I guess the cursor isn't actually returning any rows at all?  Below is what I currently have; I haven't added any documentation or messaging yet.  Any help would be greatly appreciated.

import arcpy
from arcpy import env
import os

#Set variables
inputgdb = sys.argv[1]
nullCount = 0

#Set workspace
arcpy.env.workspace = inputgdb

#Populate Nulls with TBD
datasetList = arcpy.ListDatasets(feature_type = 'feature')
datasetList = [''] + datasetList if datasetList is not None else []
for dataset in datasetList:
    env.workspace = inputgdb + "\\" + dataset
    dataset = dataset + "\\"
    fcList = arcpy.ListFeatureClasses()
    for fc in fcList:
        fc = fc +"\\"
        fieldList = arcpy.ListFields(fc,["String"])
        for field in fieldList:
            with arcpy.da.UpdateCursor (fc, 'fieldList') as cursor:
                for row in cursor:
                    if row[0] == None:
                        row[0] = 'TBD'
                        cursor.updateRow(row)
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11 Replies
BlakeTerhune
MVP Regular Contributor

Just for future reference, you can format your code with syntax highlighting so it looks like it does in the IDE and is easier to read.

Posting Code blocks in the new GeoNet

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JustinWolff
Occasional Contributor

Thanks Blake - applied to original post.  Working through the other suggestions/help now.  Much appreciated.

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