Python将普通Class对象转为Json字符串

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import json     class Test:     """     age     name     """       # init args :age、sname     age = 0     name = ''     def obj_json():     """     convert object to json str     :return json str:     """     test = Test()     test.age = 20     test.name = 'kitty'     list_test = []     list_test.append(test)     test = Test()     test.age = 30     test.name = 'hello'     list_test.append(test)     json_str = json.dumps(list_test, default=lambda o: o.__dict__)     print(json_str)     return json_str     res = obj_json() print('object convert json:' + res)