def update_thesis_supervisors(self):
        """700 -> 701 Thesis supervisors."""
        for field in record_get_field_instances(self.record, '700'):
            record_add_field(self.record, '701', subfields=field[0])
        record_delete_fields(self.record, '700')
def update_thesis_supervisors(self):
        
        for field in record_get_field_instances(self.record, '700'):
            record_add_field(self.record, '701', subfields=field[0])
        record_delete_fields(self.record, '700')
def update_thesis_supervisors ( self ) : for field in record_get_field_instances ( self . record , '700' ) : record_add_field ( self . record , '701' , subfields = field [ 0 ] ) record_delete_fields ( self . record , '700' )
700 -> 701 Thesis supervisors.
700 - > 701 Thesis supervisors .