如何使用Python解析/提取嵌套的JSON数据?

import requests
import json
url2 = 'http://live.icecat.biz/api/?shopname=openIcecat-live&lang=de&content=featuregroups&icecat_id=1334921'

content = requests.get(url2).content

j = json.loads(content)

for each in j['data']['FeaturesGroups']:
    print each['FeatureGroup']['Name']['Value']
    for i in each["Features"]:
        print i["ID"]

import requests
import json
url = 'http://live.icecat.biz/api/?shopname=openIcecat-live&lang=de&content=featuregroups&icecat_id=1334921'

content = requests.get(url).content

j = json.loads(content)    

def find_all(item, level):
    if isinstance(item, dict):
        for k in item:
            print k
            find_all(item[k],level+1)
    else:
        print ' '*level ,item

for each in j['data']['FeaturesGroups']:
    find_all(each['FeatureGroup'], 0)


ID
  3
Name
Language
   DE
ID
   437975
Value
   Speicher
ID
  28
Name
Language
   DE
ID
   437998
Value
   Betriebsbedingungen
ID
  146
Name
Language
   DE
ID
   624349
Value
   Weitere Spezifikationen