python开发笔记-str转字典

后台接收到post请求数据格式为json格式的字符串，不能直接用字典的get方法

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Internal Server Error: /get_data/sql_server/
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.6/dist-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python3.6/dist-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/get_data_from_sqlserver/get_data/views.py", line 45, in get_data_from_sql_server
    request_token = request_data.get('token')
AttributeError: 'str' object has no attribute 'get'

json dict格式的字符串，转字典，可以用eval方法

例：

>>> test = "{'name' : 'jesson', 'sex' : 'male', 'age': 28}"
>>> test01=eval(test)
>>> type(test)
<class 'str'>
>>> 
>>> type(test01)
<class 'dict'>