临时处理ElasticSearch返回的上十级嵌套

handle_nested_dict.py

class Nested:
    def __init__(self, data):
        self.data = data

    def __getitem__(self, item):
        if self.data is None:
            return Nested(None)

        if isinstance(item, int) and isinstance(self.data, list):
            if len(self.data) >= item:
                return Nested(self.data[item])
            return Nested(None)
        if isinstance(item, str) and isinstance(self.data, dict):
            if item in self.data:
                return Nested(self.data[item])
            return Nested(None)
        return Nested(None)

    def __nonzero__(self):
        return bool(self.data)

    def __str__(self):
        return str(self.data)


a = {'b': {'c': [123]}}
a = Nested(a)

c = a['b']['c'][0]['123']['5']
print(c)