I want to update a field in my feature class. I tried to use a da.SearchCursor (code below) but was quickly reminded that tuples are immutable... I ran the code but it failed with a
TypeError: 'tuple' object does not support item assignment.
How do I most efficiently retrieve all rows from a feature class and update a field of each row and save it back to the feature class?
with arcpy.da.SearchCursor(fc, fldNames) as sc: for thing in sc: tmp = 0 # # do stuff here # thing[idxField] = tmp