Python - 将 dict 转储为 json 字符串
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Python - dump dict as a json string
提问by Tampa
What am I missing? I want to dump a dictionary as a json string.
我错过了什么？我想将字典转储为 json 字符串。
I am using python 2.7
我正在使用 python 2.7
With this code:
使用此代码：
import json
fu = {'a':'b'}
output = json.dump(fu)
I get the following error:
我收到以下错误：
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/gevent-1.0b2-py2.7-linux-x86_64.egg/gevent/greenlet.py", line 328, in run
result = self._run(*self.args, **self.kwargs)
File "/home/ubuntu/workspace/bitmagister-api/mab.py", line 117, in mabLoop
output = json.dump(fu)
TypeError: dump() takes at least 2 arguments (1 given)
<Greenlet at 0x7f4f3d6eec30: mabLoop> failed with TypeError
采纳答案by jamylak
Use json.dumpsto dump a str
使用json.dumps转储str
>>> import json
>>> json.dumps({'a':'b'})
'{"a": "b"}'
json.dumpdumps to a file
json.dump转储到文件
回答by suhailvs
i think the problem is json.dump. try
我认为问题是 json.dump。尝试
json.dumps(fu)
回答by Sharath BJ
You can use json.dumps.
您可以使用json.dumps.
Example:
例子：
import json
json.dumps({'zuckerberg':'tech','sachin':'cricket'})
This outputs:
这输出：
'{"zuckerberg": "tech", "sachin": "cricket"}'
If you want to sort the keys, use sort_keysas the second argument to json.dumps:
如果要对键进行排序，请sort_keys用作第二个参数json.dumps：
json.dumps({'zuckerberg':'tech','sachin':'cricket'},sort_keys=True)
Outputs:
输出：
'{"sachin": "cricket", "zuckerberg": "tech"}'
回答by Eyasu
message={"message":"Done", "result":"1"}
message_json = simplejson.dumps(message)
payload = message_json
##or
message={"message":"Done", "result":"1"}
message_json=jsonify(message)