问题复现

import json
t = unicode("{'test':'test'}")
json.loads(json.dumps(t)).items()

上面会报错:

Traceback (most recent call last):
  File "script.py", line 4, in <module>
    json.loads(json.dumps(t)).items()
AttributeError: 'unicode' object has no attribute 'items'

Exited with error status 1

解决方案（用eval转）

import json
t = unicode("{'test':'test'}")
t = eval(t) // 用eval把Unicode转str
json.loads(json.dumps(t)).items()