I have a script that runs Tabulate Area on a single feature class multiple times with different rasters. In total Tabulate Area runs 5 times. 2 of the input rasters are provided as arguments to the script and Tabulate Area works as expected. The other 3 rasters are results of raster functions (i.e. Reclassify, SetNull, EucDistance, etc.).

Every time I run the script, Python crashes when trying to run Tabulate Area on one of those preprocessed rasters. It happens on a different raster every time, seemingly randomly. There is no error message, Python simply crashes. When I hit Get Details in the generic Windows error dialog, it seems like there is a different Fault Module every time as well.

When I try to run Tabulate Area manually in ArcCatalog, ArcCatalog crashes and asks if I want to send a report to ESRI. Again, no error message.


Here is some of the code involved:

def GetBuffer(inRaster, lcClass, bufDist, ringBuffer=True):

    setnull = SetNull(inRaster, 1, "Value <> " + str(lcClass))

    dist = EucDistance(setnull, bufDist)

    buf = Reclassify(dist, "Value", RemapRange([[0, 100, 1], ["NODATA", 0]]))

    if ringBuffer:

        reclass = Reclassify(setnull, "Value", RemapValue([[0, 0], [1, 1], ["NODATA", 0]]))

        ring = arcpy.gp.Minus_sa(buf, reclass)

        return ring

    else: return buf

def SubtractRaster(inRaster1, inRaster2):

    sub = arcpy.gp.Minus_sa(inRaster1, inRaster2)

    setnull = SetNull(sub, 1, "Value <> 1")

    return setnull

lcRaster = arcpy.Raster(landcover)

treecanopy = GetBuffer(lcRaster, TreeCanopyClass, TreeCanopyBuffer, False)

parkinglots = SubtractRaster(GetBuffer(lcRaster, ParkingLotClass, ParkingLotBuffer), treecanopy)

buildings = SubtractRaster(GetBuffer(lcRaster, BuildingClass, BuildingBuffer), treecanopy)

impervious = SubtractRaster(GetBuffer(lcRaster, ImperviousClass, ImperviousBuffer), treecanopy)


TabulateArea(fc, "GID", parkinglots, "Value", plTabArea , 1)

TabulateArea(fc, "GID", buildings, "Value", buildTabArea , 1)

TabulateArea(fc, "GID", impervious, "Value", impTabArea , 1)


I installed ArcGIS 10.1 Service Pack 1 after seeing bugs related to Tabulate Area in 10.1. When I first ran the script with SP1, it worked. When I ran it again later, I had the same issue where Python simply crashed without providing an error message.

  • Could you post your script?
    – Aaron
    May 15, 2013 at 22:21
  • @Aaron - I've added some of the code in an update to the post.
    – Brian
    May 16, 2013 at 14:55
  • I would put some arcpy.GetMessage... lines in your code to provide some feedback so you at least know where it is failing of no errors are being reported.
    – user681
    May 16, 2013 at 15:21
  • @DanPatterson - I actually had print statements in there, but I took them out for the code sample so it wouldn't be as cluttered. That's how I know it is failing at the one of the 3 TabulateArea calls (and a different one of the 3 each time).
    – Brian
    May 16, 2013 at 15:24
  • Then could you provide the results of the print statements Brian so the line of failure can be examined?
    – user681
    May 16, 2013 at 15:25

2 Answers 2


You are running 10.1; have you installed any service packs? There is a list of bugs found for "tabulate area crashes" from esri's support page. Check to see if any apply to you, or check other searches about the tool.

  • I hunted for bugs and did not find any directly related to this, but apparently I wasn't looking in the right place. I installed ArcGIS 10.1 SP1 and it worked just fine. Next is to play around with the new 64bit background processing capabilities. Thanks.
    – Brian
    May 16, 2013 at 19:14
  • Sorry, false alarm. It worked the first time I ran it and then upon more testing, I'm getting the same issue again even with SP1.
    – Brian
    May 16, 2013 at 19:45
  • Do you save the rasters subtraction, getBuffer, etc? And do they have attribute tables? check this
    – gm70560
    May 16, 2013 at 19:55
  • I don't save the intermediate rasters, but I do save the result of the SubtractRaster calls. According to the link you provided, which I have seen before, that attribute table is only needed for the zone data, which in this case is vector. All my rasters do have an attribute table as well.
    – Brian
    May 16, 2013 at 19:59

I had the same issue and fixed it by (re)building the attribute table just before tabulating the area in my script:

arcpy.BuildRasterAttributeTable_management(ClassData, "Overwrite")

TabulateArea(ZoneData, zoneField, ClassData, ClassField,  TablePath, processCellSize)

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