python使用json将字符串转字典报错

问题描述

C:\Users\lenovo\AppData\Local\Programs\Python\Python37\python.exe D:/360MoveData/Users/lenovo/Desktop/startProject/OAS.Cloud.PAAS_Interface/TestCases/UM/Test_01_register.py
D:\360MoveData\Users\lenovo\Desktop\startProject\OAS.Cloud.PAAS_Interface\common\CaseData.ini
Traceback (most recent call last):
  File "D:/360MoveData/Users/lenovo/Desktop/startProject/OAS.Cloud.PAAS_Interface/TestCases/UM/Test_01_register.py", line 73, in <module>
    Test_UM_register().test_01()
  File "D:/360MoveData/Users/lenovo/Desktop/startProject/OAS.Cloud.PAAS_Interface/TestCases/UM/Test_01_register.py", line 52, in test_01
    headers = json.loads(dataList[1])
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python37\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 353, in raw_decode
    obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)

Process finished with exit code 1

如上，json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes，意思为jsondecodeerror:期望属性名用双引号括起来

问题分析

我查看我的原始数据，格式为：{‘Content-Type’: ‘application/json’}
python对单引号、双引号都认为是引号，但对于json来说，它识别是按照双引号来的。因此，凡是用json来格式转换，必定将单引号转为双引号，必要的时候加“\”转义。通过上述问题分析，我们得到两个解决方案：1、将原格式换成双引号；2、换其它方式来转换

问题解决

1、将原格式换成双引号
{‘Content-Type’: ‘application/json’}改为{“Content-Type”: “application/json”}

验证结果：
成功
2、换其它方式来转换

        headers = eval(dataList[1])
        # headers = json.loads(dataList[1])

验证结果：
成功