topic Re: Can't Import Hydrology Toolbox & Trace Downstream in Water Resources Questions

Can't Import Hydrology Toolbox & Trace Downstream

Anonymous User — Wed, 23 Nov 2016 20:26:01 GMT

Hello,

I need some help using the TraceDownstream tool off of the ArcGIS rest services. It works completely fine if I run it within ArcMap, but my goal is too implement it in a python tool for a project that I am doing. I can copy & paste the stand-alone script listed in the item description of the tool, but for some reason it still will not import successfully. I've attached the code below, and again..it is verbatim from the stand-alone script in the item description. I created a point feature class called "pourpt1" and placed it in the testdata geodatabase. #trace down stream

Best,

Casey

Re: Can't Import Hydrology Toolbox & Trace Downstream

DanPatterson_Retired — Wed, 23 Nov 2016 20:57:15 GMT

is there a dependency on the Spatial Analyst? in base ArcMap, hydrology related tools are indeed in the SA extension, which needs to be available and enabled in order to use

Re: Can't Import Hydrology Toolbox & Trace Downstream

Anonymous User — Thu, 24 Nov 2016 15:51:56 GMT

No, I don't have SA checked out in ArcMap and the tool still runs successfully, it just won't function in Python.

Re: Can't Import Hydrology Toolbox & Trace Downstream

DanPatterson_Retired — Thu, 24 Nov 2016 16:54:57 GMT

In python, I think you should use CheckOutExtension...since python doesn't know about the extension being checked on