在python2.7中将原始字符串转换为JSON对象
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Convert raw string to JSON object in python2.7
提问by Aditya Patel
I am querying a PostgreSQL server to get data and a particular jsonobject actually gets returned as a string. I tried following but its not giving the correct output: (It's ipythonoutputs)
我正在查询 PostgreSQL 服务器以获取数据，而特定json对象实际上作为字符串返回。我尝试了以下但它没有给出正确的输出：（它的ipython输出）
test
Out[103]: '{"max"=>28, "min"=>18, "custom"=>[{"id"=>"12345","name"=>"test_pur"}]}'
In[104]: test.replace("=>",":")
Out[104]: '{"max":28, "min":18, "custom":[{"id":"12345", "name":"test_pur"}]}'
In[105]: j_obj = json.dumps(test)
In[106]: j_obj
Out[106]: '"{\"max\"=>28, \"min\"=>18, \"custom\"=>[{\"id\"=>\"12345\", \"name\"=>\"test_pur\"}]}"'
How can i convert a string to json by recognizing the ":" symbol?
如何通过识别“：”符号将字符串转换为 json？
When i am trying "json.loads" . Following are the errors:
当我尝试 "json.loads" 时。以下是错误：
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/IPython/core/interactiveshell.py", line 3035, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "<ipython-input-12-a7562191decf>", line 1, in <module>
data = json.loads(temp)
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 365, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 381, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting : delimiter: line 1 column 11 (char 10)
采纳答案by adrianus
Try json.loads()to load (deserialize) a JSON string into a Python dict:
尝试json.loads()将 JSON 字符串加载（反序列化）到 Python 中dict：
>>> import json
>>> s = '{"max":28, "min":18, "custom":[{"id":"12345", "name":"test_pur"}]}'
>>> data = json.loads(s)
>>> print data["max"]
28
回答by Antoine
Your code is buggy. You should use json.loads()and not json.dumps()(if I understand your question right). Here you are converting a raw string to a JSON string. I thing you want to convert a JSON string to an JSON object no ?
你的代码有问题。你应该使用json.loads()而不是json.dumps()（如果我理解你的问题的话）。在这里，您将原始字符串转换为 JSON 字符串。我想将 JSON 字符串转换为 JSON 对象，不是吗？
