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I keep getting this error from this line. 

arcpy.CreateFishnet_management(os.path.join(Output_Folder, "Full_Grid.shp"), str(NAR_U9.extent.XMin) + " " + str(NAR_U9.extent.YMin), str(NAR_U9.extent.XMin) + " " + str(NAR_U9.extent.YMin + 10), Cell_Size_Width, Cell_Size_Height, "0", "0", str(NAR_U9.extent.XMax) + " " + str(NAR_U9.extent.YMax), "NO_LABELS", NAR_U9, "POLYLINE")

I can't seem to find anything online about what the 'unicode' part means. I'm giving it specific values for the coordinates for the corners so I don't understand where it's looking for an extent attribute.

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  • Looking at ESRIs tool reference for CreateFishnet, I notice the datatype for the extent template is 'extent'. I have it as NAR_U9 which is a variable referenced to a shapefile. Shouldn't this work? – S. Price Aug 17 '18 at 17:20
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Extent is accessed with Describe and the Extent function, for example:

import arcpy
fc = r'C:\path\file.shp'
desc = arcpy.Describe(fc)
xmin = desc.extent.XMin
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