python 以 Json 格式写入文件？
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Write to file as Json format?
提问by kn3l
I have A method for format the ouput as json. My keyword_filter will be pass in this this format:
我有一种将输出格式化为 json 的方法。我的 keyword_filter 将以这种格式传递：
<QueryDict: {u'customer_type': [u'ABC'], u'tag': [u'2']}>
<QueryDict: {u'customer_type': [u'TDO'], u'tag': [u'3']}>
<QueryDict: {u'customer_type': [u'FRI'], u'tag': [u'2,3']}>
In fact this I got from request.GET (keyword_filter=request.GET)
事实上这是我从 request.GET (keyword_filter=request.GET) 得到的
This is my method:(I am trying)
这是我的方法:(我正在尝试）
def save_fiter_to_JSON(self, dest, keyword_filter):
fwrite = open(dest, 'a')
#keyword_filter = <QueryDict: {u'customer_type': [u'FRI'], u'tag': [u'2,3']}>
string_input1 =string.replace(str(keyword_filter), '<QueryDict:', '["name:"')
string_input2 = string.replace(string_input1, '>', '')
fwrite.write(string_input2+",\n")
fwrite.close()
Everybody here Could help me? The json format That I Want.
这里的每个人都可以帮助我吗？我想要的 json 格式。
[
{"name": filter_name, "customer_type": "ABC", "tag": [2,3]},
]
Or the other good one format from you .
或者你提供的另一种好的格式。
import simplejson as json
>>> json.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}])
'["foo", {"bar": ["baz", null, 1.0, 2]}]'
**filter_name will be pass from the method save_fiter_to_JSON.
**filter_name 将从 save_fiter_to_JSON 方法传递。
Merry Christmas And a happy New Year. ...
圣诞快乐，新年快乐。...
回答by Denis Otkidach
Some tips:
一些技巧：
- you can convert django's
QueryDictto to Python dictionary withdict(keyword_filter)expression, - you can add additional record to the dictionary with
dict(keyword_filter, name=filter_name)expression.
- 您可以
QueryDict使用dict(keyword_filter)表达式将 django 转换为 Python 字典， - 您可以使用
dict(keyword_filter, name=filter_name)表达式将附加记录添加到字典中。
Then use jsonmodule to dump JSON and write it to the file.
然后使用json模块转储 JSON 并将其写入文件。
回答by steveha
Your question is difficult to understand. I am not sure what you need. Here is my best attempt to solve your problem.
你的问题很难理解。我不确定你需要什么。这是我解决您问题的最佳尝试。
def save_fiter_to_JSON(self, dest, filter_name, keyword_filter):
# start with an empty list
lst = []
# I don't know where you will get your qd (QueryDict instance)
# filter something using keyword_filter? Replace this with actual code
for qd in ??FILTER_SOMETHING??(keyword_filter):
# make a mutable copy of the QueryDict
d = qd.copy()
# update the copy by adding "name"
d["name"] = filter_name
# append dict instance to end of list
lst.append(d)
# get a string with JSON encoding the list
s = json.dumps(lst)
f = open(dest, 'a')
f.write(s + "\n")
f.close()
