WebTypeError: descriptor '__init__' of 'super' object needs an argument 是你自己定义的Dict类的init函数中除了self参数,还有另外一个参数,类似这样,注意最后那个括号里: super(Dict, self).__init__(arg) 应该改成: super(Dict, self).__init__() 因为init类似c++中的构造函数,在调用时会自动执行,而你没有传入任何参数 1 Reply Sign in to make a reply 廖雪峰的官方 … WebMar 14, 2024 · TypeError: descriptor 'values' of 'dict' object needs an argument 这个错误提示的意思是说,在你的代码中调用了字典的 values 方法,但是忘记了给它传入参数。 values 方法是用来返回字典中所有的值的,它不需要接受任何参数。
Descriptor HowTo Guide — Python 3.11.3 documentation
WebIf the type is "h" (UNIX file descriptor), the descriptor is not duplicated by this call and the returned descriptor remains in possession of the message object, and needs to be duplicated by the caller in order to keep an open reference to it after the message object is freed. Each argument may also be NULL, in which case the value is read and ... WebDescriptors are Python objects that implement a method of the descriptor protocol, which gives you the ability to create objects that have special behavior when they’re accessed as attributes of other objects. Here you … foam talent open call
Pythonの基本的なエラー一覧とその原因の確認方法
WebSep 8, 2024 · bdi, as an aside to Steve’s answer, there are two ways to call the base class’s __init__ method, if you really needed to. This explanation might be too advanced for … Web描述 Python 字典 items () 方法以列表返回视图对象,是一个可遍历的key/value 对。 dict.keys () 、 dict.values () 和 dict.items () 返回的都是视图对象( view objects),提供了字典实体的动态视图,这就意味着字典改变,视图也会跟着变化。 视图对象不是列表,不支持索引,可以使用 list () 来转换为列表。 我们不能对视图对象进行任何的修改,因为字 … WebSep 8, 2024 · bdi, as an aside to Steve’s answer, there are two ways to call the base class’s __init__ method, if you really needed to. This explanation might be too advanced for now. Bookmark and come back later after covering inheritance, class methods, and super().. The preferred method is to use super().It understands accessing the parent classes and calls … foam tag