python - 在Python中解析JSON

Question

我正在从 api 提取 json 响应。然后我想将该响应转换成字典。

import requests
import json
import time
count=1
testdata = open('testdata.txt', 'a')
for data in [111111111,2222222222]:
    data = requests.get('https://na.api.pvp.net/api/lol/na/v1.3/game/by-summoner/%s/recent?api_key=33333333333' % data)
    print(count)
    print(data.text)
    data2=json.loads(data.text)
    print(data2)
    time.sleep(3)
    count=count+1
testdata.close()

print(data.text) 按预期运行并返回预期值

{"summonerId":111111111,"games":[{"gameId":1968631337,"invalid":false,"gameMode":"CLASSIC","gameType":"MATCHED_GAME","subType":"NORMAL","mapId":11,"teamId":100,"championId":89,"spell1":3,"spell2":4,"level":30,"ipEarned":267,"createDate":1443930342199,"fellowPlayers":[{"summonerId":47529485,"teamId":200,"championId":17},{"summonerId":48012177,"teamId":100,"championId":103},{"summonerId":47619618,"teamId":200,"championId":114},{"summonerId":22864296,"teamId":100,"championId":41},{"summonerId":35695551,"teamId":200,"championId":110},{"summonerId":47070578,"teamId":200,"championId":92},{"summonerId":22289063,"teamId":200,"championId":432},{"summonerId":48476724,"teamId":100,"championId":72},{"summonerId":25396855,"teamId":100,"championId":133}],"stats":.............}

问题在于:

data2=json.loads(data.text)
print(data2)

print(data2) 的输出是:

{'games': [{'gameId': 1968631337, 'championId': 89, 'level': 30, 'createDate': 1443930342199, 'gameMode': 'CLASSIC', 'mapId': 11, 'gameType': 'MATCHED_GAME', 'subType': 'NORMAL', 'teamId': 100, 'invalid': False, 'ipEarned': 267, 'fellowPlayers': [{'teamId': 200, 'championId': 17, 'summonerId': 47529485}, {'teamId': 100, 'championId': 103, 'summonerId': 48012177}, {'teamId': 200, 'championId': 114, 'summonerId': 47619618}, {'teamId': 100, 'championId': 41, 'summonerId': 22864296}, {'teamId': 200, 'championId': 110, 'summonerId': 35695551}, {'teamId': 200, 'championId': 92, 'summonerId': 47070578}, {'teamId': 200, 'championId': 432, 'summonerId': 22289063}, {'teamId': 100, 'championId': 72, 'summonerId': 48476724}, {'teamId': 100, 'championId': 133, 'summonerId': 25396855}], 'spell1': 3, 'spell2': 4, 'stats': {'timePlayed': 2583, 'win': True, 'wardPlaced': 29, 'totalDamageDealt': 52932, 'magicDamageDealtToChampions': 8275, 'playerPosition': 4, 'largestMultiKill': 1, 'largestKillingSpree': 2, 'magicDamageTaken': 14488, 'totalTimeCrowdControlDealt': 125, 'trueDamageDealtPlayer': 8372, 'wardKilled': 1, 'item2': 3068, 'item3': 3117, 'item0': 3401, 'item1': 2049, 'item6': 3340, 'item4': 3022, 'item5': 1011, 'minionsKilled': 68, 'neutralMinionsKilledYourJungle': 1, 'championsKilled': 3, 'trueDamageTaken': 991, 'assists': 24, 'neutralMinionsKilled': 1, 'playerRole': 2, 'physicalDamageDealtToChampions': 3464, 'goldSpent': 10805, 'level': 18, 'physicalDamageDealtPlayer': 14884, 'totalHeal': 9606, 'goldEarned': 12046, 'turretsKilled': 1, 'totalDamageDealtToChampions': 11739, 'totalUnitsHealed': 4, 'team': 100, 'numDeaths': 7, ...........}

这省略了最初的“summonerId”对，我不明白为什么。谢谢!

Answer 1

如果您成功解析了 JSON 响应，则 key 肯定就在那里。然而，字典是没有顺序的； summonerId 键仅显示在末尾，而不是在您用 ..... 替换的部分中。您最好只打印顶级字典的键:

print(sorted(data2))

然后您将获得键的排序列表。或者，使用 pprint.pprint() function 打印格式化的缩进结构。 :

from pprint import pprint

pprint(data2)

请注意，requests 本身支持 JSON 响应，您无需单独使用 json 库:

url = 'https://na.api.pvp.net/api/lol/na/v1.3/game/by-summoner/%s/recent?api_key=33333333333' % data
data2 = requests.get(url).json()

response.json() 调用将响应数据解析为 JSON。