Nodal values update of an existing Abaqus odb file??

Dear All:

I want to update some nodal values of an existing Abaqus odb file using pyhton script. The problem is I dont know what kind of commands should I use in order to do this task?

Another question is how to delete an existing FieldOutput variable from odb file. I know by using add addData command, we can add user-defined field to the odb file, but how to delete an existing field output?

Thanks for your help,

Malekan

I have not tried to replace values in an Abaqus odb-file using Python.
Why would you want to do that?

-Jorgen