da.walk can't get featureclasses in featuredataset?

pyfans

Can arcpy.da.Walk() function find featureclasses within a featuredataset in gdb?  For example, there  are a featuredataset 'DT' and a featureclass 'A' in gdb, and a featureclass 'B' in 'DT', after walk(gdb), it can only find DT and A, but no B.  Is it normal ?

I use 10.8.2.

AlfredBaldenweck

Each feature dataset is considered its own environment by arcpy, so functions like Walk() and ListFeatureClasses() will ignore stuff in a feature dataset if run on a geodatabase.

What you have to do instead is iterate through what's returned by Walk, check if it's a featuredataset, then change the environment to the featuredataset and list those feature classes in it.

 

Here's some sample code I wrote. In this case, "fd" was originally the output of arcpy.ListFeatureDatasets(), but you could sub in the files from Walk()

 

 

 

dirP = #whatever gdb you were running Walk() on
desc= (arcpy.da.Describe(fd))
if 'datasetType' in desc:
    if desc['datasetType'] == "FeatureDataset":
        arcpy.env.workspace = os.path.join(dirP, fd)
        fdFCList = arcpy.ListFeatureClasses()
        if fdFCList:
           for fc in fdFCList:
                fList.append([os.path.join(
                             desc['catalogPath'],fc)])

        # Reset the workspace or else this breaks.
        arcpy.env.workspace = dirP