I'm getting an error message in my Select by Attribute statement saying the layer file doesn't exist, however, the output of the Make Feature Layer completed successfully. Thoughts?
Output from Make Feature Layer
Error Message
Code:
fc = arcpy.ListFeatureClasses()
for f in fc:
#Run Viewshed
outViewshed = ViewshedRasters+"/"+"view_"+f[6:].split(".")[0]
arcpy.Viewshed_3d(Elevation,f, outViewshed,1)
print arcpy.GetMessages()
#convert viewshed to polygon
OutPoly = ViewshedPolys+"/"+os.path.basename(outViewshed).split(".")[0]+"_poly.shp"
arcpy.RasterToPolygon_conversion(outViewshed,OutPoly)
arcpy.AddField_management(OutPoly,"COUNT","SHORT")
OutPolyLyr = OutPoly.split(".")[0]+"_Lyr"
arcpy.MakeFeatureLayer_management(OutPoly,OutPolyLyr)
print arcpy.GetMessages()
WhereClause = '"COUNT" = \'1\''
print WhereClause
arcpy.SelectLayerByAttribute_management(OutPolyLyr,"NEW_SELECTION",WhereClause)
print arcpy.GetMessages()
view = arcpy.GetCount_management(OutPolyLyr)
print "There are",view,"selected"Code:
Executing: MakeFeatureLayer C:/ArcGIS/SurfCityData/Scratch/ViewshedPolys/view_0_poly.shp C:/ArcGIS/SurfCityData/Scratch/ViewshedPolys/view_0_poly_Lyr # # "FID FID VISIBLE NONE;Shape Shape VISIBLE NONE;ID ID VISIBLE NONE;GRIDCODE GRIDCODE VISIBLE NONE;COUNT COUNT VISIBLE NONE"
Start Time: Sun Sep 22 09:41:28 2013
Succeeded at Sun Sep 22 09:41:28 2013 (Elapsed Time: 0.00 seconds)Code:
Traceback (most recent call last):
File "C:\Python27\ArcGIS10.1\Lib\site-packages\Pythonwin\pywin\framework\scriptutils.py", line 326, in RunScript
exec codeObject in __main__.__dict__
File "C:\ArcGIS\SurfCityData\Code\SC_ViewShed.py", line 127, in <module>
arcpy.SelectLayerByAttribute_management(OutPolyLyr,"NEW_SELECTION",WhereClause)
File "C:\Program Files (x86)\ArcGIS\Desktop10.1\arcpy\arcpy\management.py", line 6435, in SelectLayerByAttribute
raise e
ExecuteError: Failed to execute. Parameters are not valid.
ERROR 000732: Layer Name or Table View: Dataset C:/ArcGIS/SurfCityData/Scratch/ViewshedPolys/view_0_poly_Lyr does not exist or is not supported
Failed to execute (SelectLayerByAttribute).