def get_node_attr(self, where, attrname, name=None):

        obj = self.get_node(where, name=name)
        return obj._f_getattr(attrname)
Takes a nullable char and converts it to empty char if null
dataset/ETHPy150Open PyTables/PyTables/tables/file.py/File.get_node_attr--crossover with--dataset/ETHPy150Open gtaylor/django-eve-db/eve_db/ccp_importer/importers/importer_classes.py/parse_char_notnull