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Python类型:dict of something

type-hinting types data-structures python-3.x python

Davi Daniel Siepmann · 技术社区 · 7 年前

有没有办法告诉python(3.6+)我的属性是某个内容的dict?

我想要的是:

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

1 回复 | 直到 7 年前

Dave 7 年前

要以Dict形式键入,必须从键入中导入Dict。键入模块还支持其他类型的键入。例如:Tuple、List和Union。您可以使用这些相同的类型来指示返回值。

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)