need help with UpdateCursor and .updateRow(row)!!!

Hi all,

I am studying python scripting for geoprocessing and am having trouble with a update cursor loop.

"Property_Layer" is a feature layer and I want to narrow the arcpy.UpdateCursor to empty "LOCALITY" fields. I then want to use the for loop to set the "LOCALITY" field to the variable "value".

my code stalls at the rows.updatRow(row) line. I'm not sure I can use a feature layer with the UpdateCursor....!?

I am new to this so any help would be greatly appreciated!

rows = arcpy.UpdateCursor ("Property_Layer",'"LOCALITY" = ' + "'" + "'")

row = rows.next()

for row in rows:
row.setValue ("LOCALITY", value)
rows.updateRow(row)

del row, rows #delete cursors