Calculate geometry leads to KeyError: '#'

kradijaf

 

 

import arcpy as a

a.env.overwriteOutput=1
a.env.workspace=r'F:\route\to\database\database.gbd'

a.management.MakeFeatureLayer('feature_class', 'feature_layer')
a.CalculateGeometryAttributes_management('feature_layer', ["new_field", "AREA_GEODESIC"], area_unit="SQUARE_KILOMETERS")

 

 

Tried to calculate it with both arcpy.management.CalculateGeometryAttribute and arcpy.CalculateGeometryAttributes_management as in https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/calculate-geometry-attributes.htm always led to:

KeyError: '#', 

Failed to execute (CalculateGeometryAttributes), 

geomValue = eval(geomCalcs[calcProp[1].upper()]).

 

I´m using PythonWin 3.7.11 and ArcGIS Pro 2.9.0

 

I read this thread, checked my code again, didn't help. https://community.esri.com/t5/python-questions/keyerror-when-calculating-geometry-in-arcpy/td-p/1030821

JoshuaBixby

arcpy.CalculateGeometryAttributes_management is simply an alias for arcpy.management.CalculateGeometryAttributes, so you should never get different results between them.  If you do get different results, there is a ArcPy defect somewhere.

According to the documentation you reference, the geometry_property parameter should be in the form of a Value Table, which is one form of a multi-value input.  Working with multivalue inputs—ArcGIS Pro | Documentation .  Working with Value Table objects is quite clunky, so there are Python list and string representations of them, which is what you commonly see in documentation examples.