Hi. Thanks for the tip. However, implementing that example, the script will only generate the second output "file", (or it's overwriting the first one), so all I get when run is "fileb".
# Import system modules import sys, string, os, win32com.client # Create the Geoprocessor object from win32com.client import Dispatch gp = Dispatch("esriGeoprocessing.GpDispatch.1") # Check out any necessary licenses gp.CheckOutExtension("spatial") # Iterate 2 thru 4 in increments of 2 for DEF # Name the "2" dem "outa" and the "4" dem "outb" sor = 2 # start of range eor = 4 # end of range filenames = ['file' + chr((x-sor) + ord('a')) for x in range(sor, eor)] for x in range(sor, eor): Out_Dem = filenames[x - sor] try: # Process: Topo to Raster... gp.TopoToRaster_sa("C:\\temp\\test.shp Z PointElevation", "C:\\temp\\"+Out_Dem, # Variable for name of output raster. This should increment name of output based on the for statement "5", # Output raster cell size: each pixel is 5 feet by 5 feet "2103763.27 813746.12 2111850.32 822518.65", #extent of raster borders, SPF, NC, NAD83 "20", # #Grid Margin "", #Smallest z value to be used in interpolation (optional) "", #Largest z value to be used in interpolation (optional) "NO_ENFORCE", #Drainage option "SPOT", #Spot data option "40", #Maximum number of iterations (optional) "", #Roughness penalty (optional) "0" #Discretisation error factor: This should increment DEF based on the for statement "0", #Vertical standard error (optional) "", #Tolerance 1 (optional) "" #Tolerance 2 (optional) ) except: print "ERROR OCCURED" print gp.GetMessages() -- http://mail.python.org/mailman/listinfo/python-list