Python 类型：某物的字典

Question

有没有办法通知 python (3.6+) 我的属性是某物的字典？

我想要什么：

def classify(self, sentenses: dict(Sentence)):  # <-- dict of Sentence
  for s in sentences:
    a = s.attribute

Answer 1

为了作为字典输入，您必须从输入中导入字典。 typing 模块还提供对其他类型的支持。如：元组、列表和联合。您可以使用这些相同的类型来指示 return 值。

from typing import Dict


class Sentence:

    def __init__(self):
        self.some_atr = ""
        self.another_atr = ""


def classify(sentences: Dict[str, Sentence]):  # <-- dict of Sentence
  for k, v in sentences.items():
      print(v.some_atr)


s1 = Sentence()
s1.some_atr = "First"

s2 = Sentence()
s2.some_atr = "Second"

sen = {'first': s1, 'second': s2}
classify(sen)

https://docs.python.org/3/library/typing.html

Python 类型：某物的字典

Python types: dict of something

python

types

type-hinting

data-structures

python-3.x