Error returning Shape extent

[CliveSwan]

Greetings,

I am using the ESRI example to try and return the Features extent, getting an error:

Extent—ArcGIS Pro | Documentation

TypeError: '<' not supported between instances of 'Polyline' and 'Polyline'

 The error is at the for row in sorted:

for dirpath, dirnames, filenames in arcpy.da.Walk(workspace, topdown=True, datatype=data_type): 
    #datasets = [''] + datasets if datasets is not None else []
    for filename in filenames:
            for row in sorted(arcpy.da.SearchCursor(filename, ['Shape@'])):
                #print(filename)
                extent = row[0].extent
                print(filename, extent)

Appreciate any pointers.

Thanks,

Clive

[CliveSwan · Accepted solution]

It didn't like the sorted..

[jcarlson · Accepted solution]

It probably would, but you'd need to give it a non-spatial field on which to sort.