python dict multiple level jsonpath

1class DictQuery(dict):
2    def get(self, path, default = None):
3        keys = path.split("/")
4        val = None
5
6        for key in keys:
7            if val:
8                if isinstance(val, list):
9                    val = [ v.get(key, default) if v else None for v in val]
10                else:
11                    val = val.get(key, default)
12            else:
13                val = dict.get(self, key, default)
14
15            if not val:
16                break;
17
18        return val
19