For blender. Renames object using the objects' datablock name, seeking the original if detected. #blender #python

renameObjectToDatablock.py

import bpy

for each in bpy.context.selected_objects:
    newName = each.data.name
    hasOriginal = each.data.name.find('.')>0    
    if hasOriginal:
        newName = each.data.name.split('.')[0]
    each.name = newName