python loop - saving output
The script is intended to subtract the loop variable from a raster and save the raster using an appropriate name.
I tried quite a few work-arounds, but all methods seem the hit a wall. The attached image shows that the same simple tool in modelbuilde casts the same error.
Anyone that made something similar?
Via this simple python loop:
import arcpy
stepper = 5
for stepper in range (20):
name="AFVdtm"+str(stepper)
name= arcpy.sa.Minus("DTM_frostkærLocal.tif",stepper)
stepper += stepper
rod = "c:/testmappe/"
name=name
eft=".tif"
sti=rod+name+eft
name.save(sti)
Traceback (most recent call last):
File "<string>", line 10, in <module>
File "c:\program files\arcgis 2.0\pro\Resources\arcpy\arcpy\sa\Functions.py", line 4331, in Plus
in_raster_or_constant2)
File "c:\program files\arcgis 2.0\pro\Resources\arcpy\arcpy\sa\Utils.py", line 53, in swapper
result = wrapper(*args, **kwargs)
File "c:\program files\arcgis 2.0\pro\Resources\arcpy\arcpy\sa\Functions.py", line 4328, in Wrapper
["Plus", in_raster_or_constant1, in_raster_or_constant2])
RuntimeError: ERROR 000732: Input Raster: Dataset c:/testmappe/ does not exist or is not supported
I have tried using relative and absolute paths, which doesn't change anything in the error.
Running it like:
import arcpy
stepper = 5
for stepper in range (20😞
name="AFVdtm"+str(stepper)
name= arcpy.sa.Minus("DTM_frostkærLocal.tif",stepper)
stepper += stepper
name.save("c:/testmappe/%name%.tif")
Produces the intended output, but continously overwrites it 
I just updated it, does that help?
Please don't pay attention to indentation, it is obviuosly somethings that happens when pasting.
When using the modelbuilder solution I see that Minus/Raster Calculator interpretes the output of the For loop as a string 
Jeez, ESRI.
I edit it to int(%Vakue%) which solves the calculation-part of the problem. Not the saving-part.