python 中json库的 对象转换
接收一个post的json字符串:
s={"username":"admin","password":"password","tenantid":""}
使用python自带的json库
import json
>>> a=json.loads(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/json/__init__.py", line 326, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
TypeError: expected string or buffer
>>>
出错!
百思不得其解。经过调试,最终发现,python中默认使用单引号表示字符串"'"
所以当,用字符串符值以后,python会把双引号转换为单引号
>>> s={"username":"admin","password":"password","tenantid":""}
>>> print s
{'username': 'admin', 'password': 'password', 'tenantid': ''}
而json是不支持单引号的。
可以用下面的方法转换
json_string=json.dumps(s)
python_obj=json.loads(json_string)
https://www.cnblogs.com/biangbiang/archive/2013/01/21/2869581.html