Python中的JSON解析错误

Question

我正在使用Python 2.7.6来解析一个JSON文件，但遇到了一个错误，我不太确定原因。这是我第一次接触Python，所以这可能是个很基础的问题。我在Stack Overflow上查了一些资料，但还是搞不清楚哪里出了问题。

这是我用来解析数据的Python代码：

import json
from pprint import pprint 

with open ('test.json') as data_file:
    data = json.load(data_file);
pprint(data)  

这是我的JSON文件：

{"votes": {"funny": 0, "useful": 0, "cool": 0}, "user_id": "hckr9Hf8BUHcXfOSDv9eJA", "review_id": "K6EEJo0I8AbwGWvwe5SJYQ", "stars": 5, "date": "2013-05-05", "text": "This place is fantastic. they have a restaurant inside the grocery store. very good food.", "type": "review", "business_id": "uPezkdNi_x_SwWlf_2rcMw"}
{"votes": {"funny": 0, "useful": 0, "cool": 1}, "user_id": "PK3TxomYLwZuOXonmYqjNw", "review_id": "5ivy-tczAQ4WYrmVF6YoKg", "stars": 5, "date": "2013-08-11", "text": "This is going to be a place we go back to many times!", "type": "review", "business_id": "UB2j_EV3CIM_E4LcpadKMQ"}

这是我在解析JSON时遇到的错误：

File "./parse.py", line 6, in <module>
    data = json.load(data_file);
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 290, in load
    **kw)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 368, in decode
    raise ValueError(errmsg("Extra data", s, end, len(s)))
ValueError: Extra data: line 2 column 1 - line 3 column 1 (char 318 - 600)

奇怪的是，如果我只用JSON的第一行，我就能成功解析数据。任何帮助我理解这个错误并修复它的建议都将非常感激。

Answer 1

这不是有效的json格式——你不能把两个哈希（对象）直接放在一起。你可以试试这样做。你会注意到我在它们之间加了一个逗号，并把整个哈希集合放在一个数组里。

[
   {
      "stars" : 5,
      "date" : "2013-05-05",
      "review_id" : "K6EEJo0I8AbwGWvwe5SJYQ",
      "text" : "This place is fantastic. they have a restaurant inside the grocery store. very good food.",
      "user_id" : "hckr9Hf8BUHcXfOSDv9eJA",
      "type" : "review",
      "votes" : {
         "funny" : 0,
         "cool" : 0,
         "useful" : 0
      },
      "business_id" : "uPezkdNi_x_SwWlf_2rcMw"
   },
   {
      "stars" : 5,
      "date" : "2013-08-11",
      "review_id" : "5ivy-tczAQ4WYrmVF6YoKg",
      "text" : "This is going to be a place we go back to many times!",
      "user_id" : "PK3TxomYLwZuOXonmYqjNw",
      "type" : "review",
      "votes" : {
         "funny" : 0,
         "cool" : 1,
         "useful" : 0
      },
      "business_id" : "UB2j_EV3CIM_E4LcpadKMQ"
   }
]