Are you checking out the spatial analyst extension ? Running code below! import arcpy from arcpy import env from arcpy.sa import * arcpy.env.scratchWorkspace = "yourscratch" arcpy.env.workspace = "yourworkspace" arcpy.CheckOutExtension("Spatial") final = (Raster('Raster_a_withpath' + Raster('Raster_b_with_Path' + ...) / 4 final.save(youroutrastername) HTH P.S.:keep in mind, there are strong differences between Single python and buildin python in AG10 syntax.. P.S.: type dir(arcpy.sa) helps to identify the avaiable commands P.S.P.S: help(Raster) helps to identify the syntax for a specific command PS.PS: Don"t use the "FROM" keyword for example in Reclass Table as it is a Keyword in Python!
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