如何将Unicode字符串转换为字典? [英] How to convert Unicode string to dictionary?
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问题描述
我有一个使用utf-8编码的字符串,例如
I have a string with utf-8 encoding, like
>>> print s
"{u'name':u'Pradip Das'}"
基本上,我从JSON文件加载了一些数据,并且如上所述加载. 现在,我想将此字符串隐藏到python字典中.所以我可以这样:
Basically I load some data from JSON file and it loads as above. Now, I want to covert this string in to python dictionary. So I can do like:
>>> print d['name']
'Pradip Das'
推荐答案
You can use the built-in ast.literal_eval
:
>>> import ast
>>> a = ast.literal_eval("{'a' : '1', 'b' : '2'}")
>>> a
{'a': '1', 'b': '2'}
>>> type(a)
<type 'dict'>
这比使用eval
更安全.正如文档本身所建议的那样:
This is safer than using eval
. As the docs itself recommends it:
>>> help(ast.literal_eval)
Help on function literal_eval in module ast:
literal_eval(node_or_string)
Safely evaluate an expression node or a string containing a Python
expression. The string or node provided may only consist of the following
Python literal structures: strings, numbers, tuples, lists, dicts, booleans,
and None.
此外,您还可以阅读文章,该文章将说明您为什么应避免使用eval
.
Additionally, you can read this article which will explain why you should avoid using eval
.
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