Original User: Sycosys
# Calculate a field to have random values derived from a uniform distribution of integers between 0 and 16
import arcgisscripting, sys
gp = arcgisscripting.create()
# An input feature class
inputFC = sys.argv[1]
gp.AddField_management(inputFC, "Value", "LONG")
gp.CalculateField_management(inputFC, "Value", "arcgis.rand('Integer 0 16')", "PYTHON", "#")