Python Script in Model Builder

DaveCouture — Wed, 04 Jun 2014 16:48:59 GMT

I have a model builder that creates a MobileCache (using the Mobile Tool) and a python script that empties the MobileCache folder. I want the script to run first, then the Mobile Tool, but I can't seem to find a way. Using a precondition does not work. I'm using ArcGIS 10.0.

Re: Python Script in Model Builder

ScottMoyer — Wed, 30 Jul 2014 18:24:42 GMT

Dave,

I think I found an answer for you (sorry for the late reply). I had the same issue and found a 2004 entry by Ghislain Prince in the ARCHIVE FORUMS. Here's the thread: Run EXE at the start of a Model‌. I was able to create a preconditon derived from a first-to-run Python script in the model, and I successfully ran a portion of my model.

Scott

PS Link isn't working. Here's the entry:

Subject	Re: Run EXE at the start of a Model
Author	Ghislain Prince
Date	May 31, 2004
Message	Hi Kevin, preconditions are based on variables (circles in model builder). Currently your tool (EXE) has no parameters or variables. What you want to do is add a parameter to it. To do so: 1) Right click your exe in ArcToolbox 2) select PROPERTIES 3) click in the grid and add a parameter with the following properties - Name: type whatever you want here - Data Type: Boolean - type: Derived - Direction: Output - Default: TRUE - leave the remaining properties to their defaults Now drop this tool into your model again, you'll notice that the tool now has a variable (cicle) to it's right (output). So now you can specify this variable as a PRECONDITION to other processes. So what actually happens when the model runs: once you've added a precondition on the output of your script the next process will not run until your script (EXE) has been run. Once your script has been run, the next process will check the variable and see that it is TRUE (since that's the default), so then the next process will run. Ghislain Prince
	Ghislain Prince ESRI

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Python Script in Model Builder

Re: Python Script in Model Builder