解压元组时输入提示? [英] Type hints when unpacking a tuple?

问题描述

解包元组时是否可以使用类型提示?我想这样做，但结果是 SyntaxError:

Is it possible to use type hinting when unpacking a tuple? I want to do this, but it results in a SyntaxError:

from typing import Tuple

t: Tuple[int, int] = (1, 2)
a: int, b: int = t
#     ^ SyntaxError: invalid syntax

推荐答案

根据 PEP-0526，你应该先注释类型，然后解包

According to PEP-0526, you should annotate the types first, then do the unpacking

a: int
b: int
a, b = t

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