用 python 处理 json
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Crunching json with python
提问by Sergey Golovchenko
Echoing my other questionnow need to find a way to crunch json down to one line: e.g.
回应我的另一个问题现在需要找到一种方法将 json 压缩到一行：例如
{"node0":{
"node1":{
"attr0":"foo",
"attr1":"foo bar",
"attr2":"value with long spaces"
}
}}
would like to crunch down to a single line:
想压缩到一行：
{"node0":{"node1":{"attr0":"foo","attr1":"foo bar","attr2":"value with long spaces"}}}
by removing insignificant white spaces and preserving the ones that are within the value. Is there a library to do this in python?
通过删除无关紧要的空格并保留值内的空格。是否有一个库可以在 python 中执行此操作？
EDITThank you both drdaeman and Eli Courtwright for super quick response!
编辑感谢 drdaeman 和 Eli Courtwright 的超级快速响应！
回答by drdaeman
http://docs.python.org/library/json.html
http://docs.python.org/library/json.html
>>> import json
>>> json.dumps(json.loads("""
... {"node0":{
... "node1":{
... "attr0":"foo",
... "attr1":"foo bar",
... "attr2":"value with long spaces"
... }
... }}
... """))
'{"node0": {"node1": {"attr2": "value with long spaces", "attr0": "foo", "attr1": "foo bar"}}}'
回答by Eli Courtwright
In Python 2.6:
在 Python 2.6 中：
import json
print json.loads( json_string )
Basically, when you use the json module to parse json, then you get a Python dict. If you simply print a dict and/or convert it to a string, it'll all be on one line. Of course, in some cases the Python dict will be slightly different than the json-encoded string (such as with booleans and nulls), so if this matters then you can say
基本上，当您使用 json 模块解析 json 时，您会得到一个 Python dict。如果您只是打印一个 dict 和/或将其转换为字符串，那么它都会在一行上。当然，在某些情况下，Python dict 与 json 编码的字符串略有不同（例如布尔值和空值），所以如果这很重要，那么你可以说
import json
print json.dumps( json.loads(json_string) )
If you don't have Python 2.6 then you can use the simplejson module. In this case you'd simply say
如果您没有 Python 2.6，那么您可以使用simplejson 模块。在这种情况下，您只需说
import simplejson
print simplejson.loads( json_string )
