def has_children(self):
        return len(self.get_child_keys())>0
This function returns the current active catalog for further processing.
dataset/ETHPy150Open AnyMesh/anyMesh-Python/example/urwid/treetools.py/ParentNode.has_children--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/utils/translation/trans_real.py/catalog