Finding the original Object Id in a FC using Python

[MANESK]

My feature class consists of several fields with name as Objectid,Objectid_1,objectid_2,objectid_12 due to spatialjoin and exporting..
I require only the recent object Id and delete all other fields..How to find and execute in arcpy!!!!

[JoshuaBixby · Accepted solution]

You could guess OBJECTID, and likely be correct, but you can find out definitively by using the ArcPy Describe object:

>>> table = # table or feature class
>>> desc = arcpy.Describe(table)
>>> desc.OIDFieldName
u'OBJECTID'
>>> ‍‍‍‍‍