Reading abaqus field output data using python scripts in an especial coordinate (x,y,z location) and not node/element set

Hello everyone,

I am using python scripts to extract the field output (displacements) in a nodeset (which was defined in the model) and it does not seem that difficult but I have a question regarding reading output data for a especial coordinate (x,y,z location) and not the node label since when you change the discretization you lose the previous node labels. Does anyone have any idea how to do so?