Sum count column in raster attribute?

Question

I am a beginner to python coding in GIS. I want to calculate the total number of counts in raster attribute table. In order to do that:

1. I would like to build a attribute table of raster data
2. use a loop through attribute table using ARCPY.SearchCursor()

Therefore, I wrote a code to build an attribute table. However, I am getting an error while running the code and not able to figure out the error in the code.

Code:

import arcpy
# Create the geoprocessing object 
import arcgisscripting
gp = arcgisscripting.create()

#To overwrite output
arcpy.env.overwriteOutput = True

#Set environment settings
gp.workspace = "C:/Subhasis/Test/raster-read"

#Build Raster Attribute Table
gp.BuildRasterAttributeTable_management("sti-9", "Overwrite")

Error Message:
Traceback (most recent call last):
  File "C:/Subhasis/Test/raster-read/test.py", line 15, in <module>
    gp.BuildRasterAttributeTable_management("sti-9", "Overwrite")
ExecuteError: ERROR 000049: Failed to build attribute table
Failed to execute (BuildRasterAttributeTable).

Answer 1

You appear to be mixing different geoprocessors, you do not need to use the arcgiscripting. Try this code, replacing the folder and file names as appropriate

import arcpy

#Set environment settings
arcpy.env.overwriteOutput = True
arcpy.env.workspace = "C:/Temp"

#Build Raster Attribute Table
arcpy.BuildRasterAttributeTable_management("myRaster", "Overwrite")