Python - setdefault

import json

dir(result)

['__class__',
 '__contains__',
 '__delattr__',
 '__delitem__',
 '__dir__',
 '__doc__',
 '__eq__',
 '__format__',
 '__ge__',
 '__getattribute__',
 '__getitem__',
 '__gt__',
 '__hash__',
 '__init__',
 '__init_subclass__',
 '__iter__',
 '__le__',
 '__len__',
 '__lt__',
 '__ne__',
 '__new__',
 '__reduce__',
 '__reduce_ex__',
 '__repr__',
 '__reversed__',
 '__setattr__',
 '__setitem__',
 '__sizeof__',
 '__str__',
 '__subclasshook__',
 'clear',
 'copy',
 'fromkeys',
 'get',
 'items',
 'keys',
 'pop',
 'popitem',
 'setdefault',
 'update',
 'values']

ll = [(15, 16, 'address'), (0, 2, 'name'), (3, 5, 'name'), (6,7,'name')]

R = set(ll)
R

{(0, 2, 'name'), (3, 5, 'name'), (6, 7, 'name'), (15, 16, 'address')}

result, labels = {}, {}
text = '请银行请银行把信用卡账单寄到这个地址，周末有时间我在家的时候去拿快递，否则放在菜鸟驿站，多谢！'
for start, end, label in R:
    labels.setdefault(label, {}).setdefault(text[start:end + 1],[]).append([start, end])
labels

{'name': {'把信': [[6, 7]], '请银行': [[3, 5], [0, 2]]},
 'address': {'个地': [[15, 16]]}}

result['id'] = 1
result['label'] = labels
result.keys()

dict_keys(['id', 'label'])

json.dumps(result, ensure_ascii=False)

'{"id": 1, "label": {"name": {"把信": [[6, 7]], "请银行": [[3, 5], [0, 2]]}, "address": {"个地": [[15, 16]]}}}'