Batch Aggregate Raster using Python

Question

I am trying to write a python script to batch Aggregate a bunch of different rasters. I get a Parsing Error Syntax error for line 11.

# Batch Aggregate raster tool
import arcpy
from arcpy import env 
from arcpy.sa import *
env.workspace = r"C:\rasters"
out_workspace = r"C:\rasters\agg"
rasters = arcpy.ListRasters()
for raster in rasters
 outAggreg = Aggregate(raster, 10, "MEAN")
 outAggreg.save(out_workspace, raster + "_agg")

• Paul: You are missing a colon after rasters.

Answer 1

Try the following changes:

# Batch Aggregate raster tool
import arcpy, os
from arcpy import env 
from arcpy.sa import *
env.workspace = r"C:\rasters"
out_workspace = r"C:\rasters\agg"
rasters = arcpy.ListRasters()
for raster in rasters:
 outAggreg = Aggregate(raster, 10, "MEAN")
 outAggreg.save(os.path.join(out_workspace, raster + "_agg.tif"))

• detroit_hc: It ran, but this time I get an error: RuntimeError: ERROR 010093: Output raster format UNKNOWN is unsupported. The input raster is an ECW and aggregate can't output that - it can output TIFFs though.
• Aaron: Try adding the .tif extension to the output path.
• detroit_hc: Bingo. out_workspace, raster + "_agg.tif" Thanks for the help!