在python中将unicode字符串字典转换为字典
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Convert unicode string dictionary into dictionary in python
提问by Sudhir Arya
I have unicode u"{'code1':1,'code2':1}"and I want it in dictionary format.
我有 unicode u"{'code1':1,'code2':1}"，我想要字典格式。
I want it in {'code1':1,'code2':1}format.
我想要它的{'code1':1,'code2':1}格式。
I tried unicodedata.normalize('NFKD', my_data).encode('ascii','ignore')but it returns string not dictionary.
我试过，unicodedata.normalize('NFKD', my_data).encode('ascii','ignore')但它返回字符串而不是字典。
Can anyone help me?
谁能帮我？
采纳答案by aga
You can use built-in astpackage:
您可以使用内置ast包：
import ast
d = ast.literal_eval("{'code1':1,'code2':1}")
Help on function literal_eval in module ast:
模块 ast 中函数literal_eval 的帮助：
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.
文字评估（节点或字符串）
安全地计算表达式节点或包含 Python 表达式的字符串。提供的字符串或节点只能由以下 Python 文字结构组成：字符串、数字、元组、列表、字典、布尔值和无。
回答by pyrospade
You can use literal_eval. You may also want to be sure you are creating a dict and not something else. Instead of assert, use your own error handling.
您可以使用literal_eval. 您可能还想确保您正在创建一个 dict 而不是其他东西。而不是assert，使用您自己的错误处理。
from ast import literal_eval
from collections import MutableMapping
my_dict = literal_eval(my_str_dict)
assert isinstance(my_dict, MutableMapping)
回答by Ali-Akber Saifee
You can use the builtin evalfunction to convert the string to a python object
您可以使用内置eval函数将字符串转换为 python 对象
>>> string_dict = u"{'code1':1, 'code2':1}"
>>> eval(string_dict)
{'code1': 1, 'code2': 1}
回答by Alastair Irvine
EDIT: Turns out my assumption was incorrect; because the keys are not wrapped in double-quote marks ("), the string isn't JSON. See herefor some ways around this.
编辑：原来我的假设是不正确的；因为键没有用双引号 (") 包裹，所以字符串不是 JSON。 有关此问题的一些方法，请参见此处。
I'm guessing that what you have might be JSON, a.k.a. JavaScript Object Notation.
我猜你所拥有的可能是JSON，也就是 JavaScript Object Notation。
You can use Python's built-in jsonmodule to do this:
您可以使用 Python 的内置json模块来执行此操作：
import json
result = json.loads(u"{'code1':1,'code2':1}") # will NOT work; see above
回答by Meena Rajani
I was getting unicode error when I was reading a json from a file. So this one worked for me.
当我从文件中读取 json 时出现 unicode 错误。所以这个对我有用。
import ast
job1 = {}
with open('hostdata2.json') as f:
job1= json.loads(f.read())
f.close()
#print type before converting this from unicode to dic would be <type 'unicode'>
print type(job1)
job1 = ast.literal_eval(job1)
print "printing type after ast"
print type(job1)
# this should result <type 'dict'>
for each in job1:
print each
print "printing keys"
print job1.keys()
print "printing values"
print job1.values()
