JSON 来自 (RIOT) API 格式不正确

Question

我正在将 JSON 数据从 API 和运行导入到 Python，出现以下解码错误：

JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)

查看在线示例立即清楚我的 JSON 数据有 ' 而其他人有 ".

理想情况下，我想知道为什么以这种方式下载它。这很可能是我的错误，而不是他们的错误。

我认为更正 JSON 格式应该很容易，但我在这里也失败了。请参阅下面的代码，了解我如何获取 JSON 数据以及我修复它的尝试。

#----------------------------------------
#---Read this only if you want to download 
#---the data yourself. 
#----------------------------------------

#Built from 'Towards Data Science' guide
#https://towardsdatascience.com/how-to-use-riot-api-with-python-b93be82dbbd6

#Must first have installed riotwatcher

#Info in my example is made up, I can't supply a real API code or
#I get in trouble. Sorry about this. You could obtain one from their website
#but this would be a lot of faff for what is probably a simple Whosebug
#question

#If you were to get/have a key you could use the following information:
#<EUW> for region
#<Agurin> for name

#----------------------------------------
#---Code
#----------------------------------------


#--->Set Variables


#Get installed riotwatcher module for
#Python
import riotwatcher

#Import riotwatcher tools.
from riotwatcher import LolWatcher, ApiError

#Import JSON (to read the JSON API file)
import json

# Global variables
# Get new API from
# https://developer.riotgames.com/
api_key = 'RGAPI-XXXXXXX-XXX-XXXX-XXXX-XXXX'
watcher = LolWatcher(api_key)
my_region = 'MiddleEarth'

#need to give path to where records
#are to be stored
records_dir = "/home/solebaysharp/Projects/Riot API/Records"


#--->Obtain initial data, setup new varaibles

#Use 'watcher' to get basic stats and setup my account as a variable (me)
me = watcher.summoner.by_name(my_region, "SolebaySharp")

# Setup retrieval of recent match info
my_matches = watcher.match.matchlist_by_account(my_region, me["accountId"])
print(my_matches)

#--->Download the recent match data

#Define where the JSON data is going to go
recent_matches_index_json = (records_dir + "/recent_matches_index.json")

#get that JSON data
print ("Downloading recent match history data")
file_handle = open(recent_matches_index_json,"w+")
file_handle.write(str(my_matches))
file_handle.close()

#convert it to python
file_handle = open(recent_matches_index_json,)
recent_matches_index = json.load(file_handle)

除此之外，出现以下错误...

JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)

所以为了更正这个问题，我尝试了：

file_handle = open(recent_matches_index_json)

json_sanitised = json.loads(file_handle.replace("'", '"'))

这个returns...

AttributeError: '_io.TextIOWrapper' object has no attribute 'replace'

为了完整起见，下面是 JSON 的样例。我添加了段落以增强可读性。它不是这样的。

{'matches': [
  {'platformId': 'NA1',
   'gameId': 5687555181,
   'champion': 235,
   'queue': 400,
   'season': 13,
   'timestamp': 1598243995076,
   'role': 'DUO_SUPPORT',
   'lane': 'BOTTOM'
   },
   {'platformId': 'NA1',
   'gameId': 4965733458,
   'champion': 235,
   'queue': 400,
   'season': 13,
   'timestamp': 1598240780841,
   'role': 'DUO_SUPPORT',
   'lane': 'BOTTOM'
   },
   {'platformId': 'NA1',
   'gameId': 4583215645,
   'champion': 111,
   'queue': 400,
   'season': 13,
   'timestamp': 1598236666162,
   'role': 'DUO_SUPPORT',
   'lane': 'BOTTOM'
   }],
'startIndex': 0,
'endIndex': 100,
'totalGames': 186}

Answer 1

这是因为 Python 正在将 JSON 转换为字符串 (str)。

file_handle.write(str(my_matches))

因为它看不出 ' 和 " 之间的区别，所以它只使用默认值 '。

我们可以使用 JSON.dumps 来阻止这种情况的发生。这部分（当然不是完全）也回答了问题的第二部分，因为我们使用的是格式正确的 JSON 命令。

above-mentioned 行只需替换为：

file_handle.write(json.dumps(my_matches))

这将保留 JSON 格式。

JSON 来自 (RIOT) API 格式不正确

JSON from (RIOT) API Formatted Incorrectly

python

api

json

riot-games-api