1

json文件内容如下：

{"votes": {"funny": 0, "useful": 5, "cool": 2}, "user_id": "rLtl8ZkDX5vH5nAx9C3q5Q", "review_id": "fWKvX83p0-ka4JS3dc6E5A", "stars": 5, "date": "2011-01-26", "text": "My wife took me here on my birthday for breakfast and it was excellent.  It looked like the place fills up pretty quickly so the earlier you get here the better.\n\nDo yourself a favor and get their Bloody Mary. It came with 2 pieces of their griddled bread with was amazing and it absolutely made the meal complete.  It was the best \"toast\" I've ever had.\n\nAnyway, I can't wait to go back!", "type": "review", "business_id": "9yKzy9PApeiPPOUJEtnvkg"}
{"votes": {"funny": 0, "useful": 0, "cool": 0}, "user_id": "0a2KyEL0d3Yb1V6aivbIuQ", "review_id": "IjZ33sJrzXqU-0X6U8NwyA", "stars": 5, "date": "2011-07-27", "text": "I have no idea why some people give bad reviews about this place. It goes to show you, you can please everyone. They are probably griping about something that their own fault... but they said we'll be seated when the girl comes back from seating someone else. So, everything was great and not like these bad reviewers. That goes to show you that  you have to try these things yourself because all these bad reviewers have some serious issues.", "type": "review", "business_id": "ZRJwVLyzEJq1VAihDhYiow"}

我的代码是：

import json
from pprint import pprint
review = open('/User/Desktop/python/test.json')
data = json.load(review)
pprint(data["votes"])

错误是：

Traceback (most recent call last):
  File "/Users/hadoop/Documents/workspace/dataming-course/src/Yelp/main.py", line 8, in <module>
    data = json.load(review)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 278, in load
    **kw)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 326, in loads
    return _default_decoder.decode(s)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 363, in decode
    raise ValueError(errmsg("Extra data", s, end, len(s)))
ValueError: Extra data: line 2 column 1 - line 3 column 1 (char 623 - 1294)
4

3 回答 3

5

您在一个文件中有两个 JSON 文档。考虑将它们放入数组或其他东西中。文件的顶层应该只包含一个元素。

于 2013-04-28T03:58:14.407 回答
2

如果你不能改变输入文件，你可以用JSONDecoder.raw_decode块来做。

>>> dec = json.JSONDecoder()
>>> dec.raw_decode('["a",1]{"foo": 2}')
(['a', 1], 7)
>>> dec.raw_decode('["a",1]{"foo": 2}', 7)
({'foo': 2}, 17)

您需要先将文件读入字符串。

于 2013-04-28T04:13:29.157 回答
1

对于它的价值，您可以尝试将您的 JSON 放入一个数组中，如下所示：

[ { "business_id" : "9yKzy9PApeiPPOUJEtnvkg",
    "date" : "2011-01-26",
    "review_id" : "fWKvX83p0-ka4JS3dc6E5A",
    "stars" : "5",
    "text" : "My wife took me here on my birthday for breakfast and it was excellent.  It looked like the place fills up pretty quickly so the earlier you get here the better.\n\nDo yourself a favor and get their Bloody Mary. It came with 2 pieces of their griddled bread with was amazing and it absolutely made the meal complete.  It was the best \"toast\" I've ever had.\n\nAnyway, I can't wait to go back!",
    "type" : "review",
    "user_id" : "rLtl8ZkDX5vH5nAx9C3q5Q",
    "votes" : { "cool" : "2",
        "funny" : "0",
        "useful" : "5"
      }
  },
  { "business_id" : "ZRJwVLyzEJq1VAihDhYiow",
    "date" : "2011-07-27",
    "review_id" : "IjZ33sJrzXqU-0X6U8NwyA",
    "stars" : "5",
    "text" : "I have no idea why some people give bad reviews about this place. It goes to show you, you can please everyone. They are probably griping about something that their own fault... but they said we'll be seated when the girl comes back from seating someone else. So, everything was great and not like these bad reviewers. That goes to show you that  you have to try these things yourself because all these bad reviewers have some serious issues.",
    "type" : "review",
    "user_id" : "0a2KyEL0d3Yb1V6aivbIuQ",
    "votes" : { "cool" : "0",
        "funny" : "0",
        "useful" : "0"
      }
  }
]

（请注意,分隔 JSON 数组的两个“主要”部分：）

于 2013-04-28T05:23:20.817 回答