遍历字典以替换前导零吗？

Question

我想遍历此字典，找到任何带有前导零的'id'，例如下面的那个，并替换成不带零的ID。所以'id'：'01001'会变成'id'：'1001'

这里是如何获取我正在使用的数据：

from urllib.request import urlopen
import json
with urlopen('https://raw.githubusercontent.com/plotly/datasets/master/geojson-counties-fips.json') as response:
    counties = json.load(response)

到目前为止，我一次可以获取一个ID，但不确定如何遍历以获取所有ID：

到目前为止，我的代码：counties['features'][0]['id']

{'type': 'FeatureCollection',
 'features': [{'type': 'Feature',
   'properties': {'GEO_ID': '0500000US01001',
    'STATE': '01',
    'COUNTY': '001',
    'NAME': 'Autauga',
    'LSAD': 'County',
    'CENSUSAREA': 594.436},
   'geometry': {'type': 'Polygon',
    'coordinates': [[[-86.496774, 32.344437],
      [-86.717897, 32.402814],
      [-86.814912, 32.340803],
      [-86.890581, 32.502974],
      [-86.917595, 32.664169],
      [-86.71339, 32.661732],
      [-86.714219, 32.705694],
      [-86.413116, 32.707386],
      [-86.411172, 32.409937],
      [-86.496774, 32.344437]]]},
   'id': '01001'},
  {'type': 'Feature',

Answer 1

from urllib.request import urlopen
import json
with urlopen('https://raw.githubusercontent.com/plotly/datasets/master/geojson-counties-fips.json') as response:
    counties = json.load(response)

如果ID与您的JSON结构一起，则遍历列表。并更新ID如

counties['features'][0]['id'] = counties['features'][0]['id'].lstrip("0")lstrip将从字符串中删除前导零。

Answer 2

假设您的字典名称是mydic。您可以使用以下代码：

mydic={'type': 'FeatureCollection', 
     'features': [ {'type': 'Feature','properties': {'GEO_ID': '0500000US01001','STATE': '01','COUNTY': '001','NAME': 'Autauga', 'LSAD': 'County','CENSUSAREA': 594.436},
    'geometry': {'type': 'Polygon','coordinates': [[[-86.496774, 32.344437],[-86.717897, 32.402814],[-86.814912, 32.340803],
      [-86.890581, 32.502974],
      [-86.917595, 32.664169],
      [-86.71339, 32.661732],
      [-86.714219, 32.705694],
      [-86.413116, 32.707386],
      [-86.411172, 32.409937],
      [-86.496774, 32.344437] ]] } ,'id': '01001'}, {'type': 'Feature','properties': {'GEO_ID': '0500000US01001','STATE': '01','COUNTY': '001','NAME': 'Autauga', 'LSAD': 'County','CENSUSAREA': 594.436},
    'geometry': {'type': 'Polygon','coordinates': [[[-86.496774, 32.344437],[-86.717897, 32.402814],[-86.814912, 32.340803],
      [-86.890581, 32.502974],
      [-86.917595, 32.664169],
      [-86.71339, 32.661732],
      [-86.714219, 32.705694],
      [-86.413116, 32.707386],
      [-86.411172, 32.409937],
      [-86.496774, 32.344437] ]] } ,'id': '000000000001001'} ]} 

for element in mydic['features']:
    element['id']=element['id'].lstrip("0")

print(dic)