データの解析JSONとPython

Question

import requests 

url = "http://api.geonames.org/citiesJSON?north=44.1&south=-9.9&east=-22.4&west=55.2&lang=de&username=demo" 
request = requests.get(url) 
fetch_data = request.json() 

print (request.content) 

for item in fetch_data: 
    print(item) 

JSONリクエストgeonames -> lng内のアイテムを取得しようとしています。私はitem['lng']

を利用する場合は、JSONリクエスト

{ 
    "geonames":[ 
     { 
     "lng":-99.12766456604, 
     "geonameId":3530597, 
     "countrycode":"MX", 
     "name":"Mexiko-Stadt", 
     "fclName":"city, village,...", 
     "toponymName":"Mexico City", 
     "fcodeName":"capital of a political entity", 
     "wikipedia":"en.wikipedia.org/wiki/Mexico_City", 
     "lat":19.428472427036, 
     "fcl":"P", 
     "population":12294193, 
     "fcode":"PPLC" 
     } 
    ] 
} 

Answer 1

てみのエラー

TypeError: string indices must be integers 

例を得ます。

for item in fetch_data['geonames']: 
    print(item['lng'])