用双引号解析json数据的python

Question

如何使用双引号解析json数据：

json.loads('
{
"time":"1410661614",
"text":"This is great",
"from":
     {
      "username":"mrb",
      "id":"5071",
      "full_name":"Free "Mrb"" #here is the problem
     },
"id":"8090107"
}
')

python返回：

ValueError: Expecting ',' delimiter: line 1 column 107 (char 106)

Answer 1

您可以通过转义双引号（\"）

轻松解决此问题

import json

json.loads("""

{
"time":"1410661614",
"text":"This is great",
"from":
     {
      "username":"mrb",
      "id":"5071",
      "full_name":"Free \\"Mrb\\""
     },
"id":"8090107"
}

""")

如评论中所述，更好地修复json生成器以正确转义双引号，将难以解析和更正json文件。

Answer 2

无论是谁编写了在字符串中发出未转义引号的程序，都需要认真的与...进行交谈。

正如Martijn所说，解析任意疯狂的引用并不容易。

OTOH，如果JSON格式正确，并且违规字符串不跨越线边界，那么它 不好。例如，

#! /usr/bin/env python

''' Escape quotes in malformed JSON value strings
    Written by PM 2Ring 2014.09.19
'''

import re

data = [
    '''      "evil_name":"Free "Mrb"",''',
    '''      "good_name":"Alan Turing",'''
]

for line in data:
    pre, val = line.split(':')
    parts = re.split('(")', val)
    n = parts.count('"')

    if n > 2:
        i = 1 
        a = []
        for c in parts:
            if c == '"':
                if 1 < i < n:
                    c = '\\"'
                i += 1
            a.append(c)
        line = pre + ':' + ''.join(a)

    print line

<强>输出

    "evil_name":"Free \"Mrb\"",
    "good_name":"Alan Turing",