def save_related(self, request, form, formsets, change):
        super(ParentAdmin, self).save_related(request, form, formsets, change)
        first_name, last_name = form.instance.name.split()
        for child in form.instance.child_set.all():
            if 2 < len(child.name.split()):
                child.name = child.name + ' ' + last_name
                child.save()
dataset/ETHPy150Open django/django/tests/admin_views/admin.py/ParentAdmin.save_related/swapped operands of `<`