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不确定类型提示实例变量的Python约定 - 我一直在__init__构造函数参数中执行它们,如下所示:

class LoggedVar(Generic[T]):
    def __init__(self, value: T, name: str, logger: Logger) -> None:
        self.name = name
        self.logger = logger
        self.value = value`

链接到上面的代码段:https://docs.python.org/3/library/typing.html#user-defined-generic-types

但我也看到PEP约定注释实例变量(下面的代码段),然后在__init__参数中进行类型提示:

class BasicStarship:
    captain: str = 'Picard'               # instance variable with default
    damage: int                           # instance variable without default
    stats: ClassVar[Dict[str, int]] = {}  # class variable`

    def __init__(self, damage: int, captain: str = None):
        self.damage = damage
        if captain:
            self.captain = captain  # Else keep the default …