topic Re: Python list to MultiValue output parameter in Python Questions

Python list to MultiValue output parameter

MarcFasel — Thu, 21 Apr 2011 10:13:23 GMT

Hello, how can I transfer objects of a Python list into a MultiValue output parameter?

The code I've written so far (below) put a complete list of layers objects in one row of the MultiValue output parameter but I'd like that each layer to be defined in one particular row:

listOfClippedOutputLayers = []

listInputFC = allInputFC.split(";")

for inFC in listInputFC:
    (inPath, inFC) = os.path.split(inFC)

    # [...] Clipping

    layer = arcpy.MakeFeatureLayer_management(clippedFC, clippedFCLayer)

    listOfClippedOutputLayers.append(layer)

arcpy.SetParameter(3, listOfClippedOutputLayers)

Does anyone know how to do this "transfer"?

Thanks for your help!

Marc

Re: Python list to MultiValue output parameter

GaryBushek — Wed, 15 Jun 2011 16:13:37 GMT

Have you figured this out? Im looking to doing the same thing.

thanks

Re: Python list to MultiValue output parameter

BruceNielsen — Thu, 16 Jun 2011 10:41:13 GMT

Since a multivalue input parameter is a text string delimited by semicolons, I would think the output parameter would be the same. In theory, you should be able to create the appropriate output with the following change to the example code:

arcpy.SetParameter(3, ';'.join(listOfClippedOutputLayers))

Re: Python list to MultiValue output parameter

MarcFasel — Wed, 22 Jun 2011 11:12:50 GMT

Hi Gary, I finally used another solution as MultiValue is not supported for geoprocessing output parameter. Sorry, maybe Bruce's solution works, I didn't try it.

Re: Python list to MultiValue output parameter

NobbirAhmed — Tue, 22 May 2012 22:22:49 GMT

Yes, Bruce Nielsen's approach works. Thanks Bruce.