When creating a buffer in a script, isn't it supposed to be added to the map by default? The code below creates the buffer just fine, but I have to add it to the map manually. Neither refreshing via code or with F5 or View - Refresh helps. I think this is the reason setting update_layer in the try block doesn't work. I know it's update_layer throwing the error because when I included it in the error message, that threw an error stating update_layer was undefined. Code & error below. Thanks for any ideas.Code: import arcpy from arcpy import env env.workspace = r"\\TestServer\TestCases_Geodatabase.gdb" mxd = arcpy.mapping.MapDocument("CURRENT") df = arcpy.mapping.ListDataFrames(mxd, "Layers")[0] case_number = arcpy.GetParameterAsText(0) #------------------------------------------------------------------------------- # Buffer Processing # def CreateBuffer(): # set buffer parameters case = "Cases" output ="Buffer_200" dist = "200 feet" side = "OUTSIDE_ONLY" # delete existing temporary buffer, if any if arcpy.Exists(output): arcpy.Delete_management(output) # create buffer arcpy.Buffer_analysis(case, output, dist, side) # update symbology try: source_layer = r"\\TestServer\Map Templates\GIS_Lyr_Files\Buffer.lyr" update_layer = arcpy.mapping.ListLayers(mxd, "B*", df)[0] arcpy.mapping.UpdateLayer(df, update_layer, source_layer, True) except Exception as e: arcpy.AddError("Updating symbology \n sl = " + source_layer + "\n" + e.message) def main(): CreateBuffer() arcpy.RefreshTOC arcpy.RefreshActiveView if __name__ == '__main__': main()Error:Updating symbology sl = \\TestServer\Map Templates\GIS_Lyr_Files\Buffer.lyr list index out of range Completed script Buffer200... Failed to execute (Buffer200). Failed at Wed Mar 28 08:22:06 2012 (Elapsed Time: 56.00 seconds)
