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python的json解析函数不支持单引号字符串

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使用python标准库的json解析函数json.loads是不能使用单引号引用的json字符串,示例如下:

 

改用双引号,或者在loads之前先调用json.dumps(a)也可以。

 

 

>>> a = "{'aa':'dd','dd':'df'}"
>>> import json
>>> b = json.loads(a)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python2.6/json/__init__.py", line 307, in loads
    return _default_decoder.decode(s)
  File "/usr/lib64/python2.6/json/decoder.py", line 319, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib64/python2.6/json/decoder.py", line 336, in raw_decode
    obj, end = self._scanner.iterscan(s, **kw).next()
  File "/usr/lib64/python2.6/json/scanner.py", line 55, in iterscan
    rval, next_pos = action(m, context)
  File "/usr/lib64/python2.6/json/decoder.py", line 171, in JSONObject
    raise ValueError(errmsg("Expecting property name", s, end))
ValueError: Expecting property name: line 1 column 1 (char 1)
>>> a = '{"aa":"asdf","dd":"dfads"}
  File "<stdin>", line 1
    a = '{"aa":"asdf","dd":"dfads"}
                                  ^
SyntaxError: EOL while scanning string literal
>>> a = '{"aa":"asdf","dd":"dfads"}'
>>> b = json.loads(a)
>>> b
>>> {u'aa': u'asdf', u'dd': u'dfads'}

 

 

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