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I'm going to assume that you are using ArcPy from ArcGIS for Desktop to write a Python script tool. To send any messages to the geoprocessing progress dialog you can use arcpy.AddMessage() For example: arcpy.AddMessage("abc.shp") or: fc = "abc.shp" arcpy.AddMessage(fc)


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Not only does a registered rowid column need to be INTEGER (32-bit), POSITIVE, NON-ZERO, NOT NULL and UNIQUE, it also needs to be reproducible on subsequent invocations. It is not possible to manufacture a field on the fly which meets this reproducibility requirement. Therefore the only way to generate a rowid for such a non-unique view is to populate a ...



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