I'm just learning about Cursors and am trying out the UpdateCursor with fake data in a feature class in a file geodatabase. I am working towards editing values in existing rows. I have been able to successfully do this to an extent: I'm using a counter to give each row a unique value, starting at 1. The data type is text/string (because this field is for building number, so it could include a building number such as H-101 or something).
When the counter hits double-digits, i.e. 10, it throws a Type Error - "sequence size must match size of the row." I read about this error on this Esri page: Error: TypeError: sequence size must match size of the row
But nothing there seemed to apply to my code. Does arcpy think that a double-digit number has two pieces, so it cannot be put into one cell??
Here is my code:
fc = "H:\ActiveShooter\ActiveShooterAutomation\ActiveShooterAutomation.gdb\Fake_AS_buildings"
# This worked only up to 9, assigning building numbers from 1 to 9. Error after 9:
# "TypeError: sequence size must match size of the row" ???
counter = 0
with arcpy.da.UpdateCursor(fc, ["BUILDING_NUMBER"]) as cursor:
for row in cursor:
counter += 1
row = str(counter)
print(row, type(row)) # For testing/diagnostic purposes
Here is what happened in ArcMap. The cell values were successfully edited/entered, up through 9.
Can anybody help me figure out why this error is occurring? Thank you!!