python - JSON 值错误 : Unterminated string

Question

我的脚本可以运行，但有时会因该错误而崩溃:

Traceback (most recent call last):
  File "planetafm.py", line 6, in <module>
    songs = json.loads(json_data)
  File "/usr/lib/python2.7/json/__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
    obj, end = self.scan_once(s, idx)
ValueError: Unterminated string starting at: line 1 column 32 (char 31)

例如，该 json 导致:

rdsData({"now":{"id":"0052-55","title":"Summertime Sadness (Radio Mix)","artist":"Lana Del Rey","startDate":"2014-09-07 21:48:51","duration":"2014-09-07 21:48:51"}})

源代码:

import requests, json, re

url = "http://rds.eurozet.pl/reader/var/planeta.json"
response = requests.get(url)
json_data = re.match('rdsData\((.*?)\)', response.content).group(1)
songs = json.loads(json_data)
print (songs['now']['artist'] + " - " + songs['now']['title']).encode('utf-8')

为什么那个json是无效的？如何解决这个问题？
谢谢解答!

Answer 1

您的正则表达式在文本中的右括号有问题。您可以通过在正则表达式中添加 $ 来修复它:

import requests, json, re

url = "http://rds.eurozet.pl/reader/var/planeta.json"
response = requests.get(url)
print response.content
json_data = re.match('rdsData\((.*?)\)$', response.content).group(1)
print json_data
songs = json.loads(json_data)
print (songs['now']['artist'] + " - " + songs['now']['title']).encode('utf-8')