对具有动态“任何”属性的Python类进行类型提示
我有一个Python类,它可以通过动态属性解析来支持“任何”属性。这是“属性字典”模式的一种变体:
class ReadableAttributeDict(Mapping[TKey, TValue]):
"""
The read attributes for the AttributeDict types
"""
def __init__(
self, dictionary: Dict[TKey, TValue], *args: Any, **kwargs: Any
) -> None:
self.__dict__ = dict(dictionary) # type: ignore
我该如何告诉Python的类型提示,这个类支持动态查找属性呢?
如果我这样做:
value = my_attribute_dict.my_var
目前,PyCharm和Datalore都在抱怨:
Unresolved attribute reference 'my_var for class 'MyAttributeDict'
1 个回答
0
根据用户 sudden_appearance 的评论,添加一个虚假的 __getattribute__
方法可以解决这个问题:
class ReadableAttributeDict(Mapping[TKey, TValue]):
def __getattribute__(self, name):
# Only implemented to make type hinting to stop complaining
# Default behaviour
# https://stackoverflow.com/a/2405617/315168
return object.__getattribute__(self, name)