Hi, I'm trying to run the following script using python that uses the 10.1 introduced arcpy.da.SearchCursor (with a group by sql clause) to run over a feature layer, select two features with the same field value (hence the group by), export the current features to an outside feature layer, and then calculate a route (using network analyst) between the two point.The PROBLEM(for now, at least): when the script runs the arcpy.CopyFeatures, the script fails. I suspect that it is due to the the input features - that row is not a valid input feature. But there I'm stuck, what should I put instead? Am I right in the diagnosis? what can I do to solve it?Thanks. import arcpy # Check out any necessary licenses arcpy.CheckOutExtension("Network") # Script arguments Field_To_Group_By = arcpy.GetParameterAsText(0) if Field_To_Group_By == '#' or not Field_To_Group_By: Field_To_Group_By = "myID" #" # provide a default value if unspecified Input_Point_Layer = arcpy.GetParameterAsText(1) if Input_Point_Layer == '#' or not Input_Point_Layer: Input_Point_Layer = "D:\\Projects\\A\\MyDefaultGDB.gdb\\MyDefaultInput" # provide a default value if unspecified # Local variables: FTGB = Field_To_Group_By Add_Locations_Output_Layer = FTGB Solved_Layer = Add_Locations_Output_Layer Routes = Solved_Layer route__Value_ = Routes Route__Name___2 = route__Value_ Route__Name___3 = Route__Name___2 totals__2_ = Route__Name___3 Solve_Succeeded = Add_Locations_Output_Layer Value = Field_To_Group_By BasePointsResult = "D:\\Projects\\A\\BasePoints.gdb\\" net_ND = "D:\\Projects\\A\\MyRoute.gdb\\net\\net_ND" totals = "D:\\Projects\\A\\SumsOfRoutes.gdb\\totals" Make_Route_Result_Layer = "Route" count = 0 field1 = "myID" sql = [None,"GROUP BY myID, OBJECTID"] currObj = arcpy.da.SearchCursor(Input_Point_Layer,field1,sql_clause=sql) try: for row in currObj: rowBasePoint = BasePointsResult + "basePoints_" + str(int(row[0])) print count # Process: Make Route Layer arcpy.MakeRouteLayer_na(net_ND, "Route", "Seconds")#, "USE_INPUT_ORDER", "PRESERVE_BOTH", "NO_TIMEWINDOWS", "", "ALLOW_UTURNS", "Oneway", "NO_HIERARCHY", "", "TRUE_LINES_WITH_MEASURES", "") print "MakeRouteLayer" print row # Process: Copy Features - create BasePoints arcpy.CopyFeatures_management(row, rowBasePoint )#, "", "0", "0", "0") print "basePoints_" + str(int(row[0])) print "Copy Features -basepoints" # Process: Add Locations arcpy.AddLocations_na(Make_Route_Result_Layer, "Stops", row, "Name # #;Attr_Length # 0", "5000 Meters", "", "Roads SHAPE;net_ND_Junctions NONE", "MATCH_TO_CLOSEST", "APPEND", "SNAP", "30 Meters", "EXCLUDE", "Roads #;net_ND_Junctions #") print "Add Locations" # Process: Solve arcpy.Solve_na(Add_Locations_Output_Layer, "SKIP", "CONTINUE", "") # Process: Select Data arcpy.SelectData_management(Solved_Layer, "Routes")