Alter aliases of ObjectID, Shape, Shape_Length, Shape_Area with arcpy

ΠαναγιώτηςΠαπάζογλου — Fri, 24 Mar 2017 13:31:11 GMT

How can I alter the aliases of the required fields (ObjectID, Shape, Shape_Length, Shape_Area) in a GDB with Python?

For example I have this code:

#!/usr/bin/python
# -*- coding: utf-8 -*-
rf = ur'D:\Δοκιμές\Tester'
gdb = rf+'\\Ant.gdb'
p = ['Parcels','Parts']
for a in range(2):
   RFields = OrderedDict([(arcpy.Describe(gdb+'\\'+p).OIDFieldName,u'Α/Α'),(u'Shape',u'Γεωμετρία'),(arcpy.Describe(gdb+'\\'+p ).lengthFieldName,u'Περίμετρος'),(arcpy.Describe(gdb+'\\'+p ).AreaFieldName,u'Εμβαδόν')])
   for key in RFields.keys():
       arcpy.AlterField_management(gdb+'\\'+p ,key,key,RFields[key])

But it produces an error.

Is it possible to do what I want?

Re: Alter aliases of ObjectID, Shape, Shape_Length, Shape_Area with arcpy

MariusBartašius — Wed, 27 Aug 2025 07:00:18 GMT

The Shape_Length and Shape_Area fields are system-managed geometry fields that ArcGIS maintains automatically. These are special because:

They're automatically calculated and maintained by the geodatabase
They're considered "reserved" system fields
Their aliases are typically locked and cannot be modified through AlterField_management

topic Alter aliases of ObjectID, Shape, Shape_Length, Shape_Area with arcpy in Python Questions

Alter aliases of ObjectID, Shape, Shape_Length, Shape_Area with arcpy

Re: Alter aliases of ObjectID, Shape, Shape_Length, Shape_Area with arcpy