文本 vs str，使用 python 类型提示时

Question

在键入注释字符串、Text 或 str 时应该使用什么？使用两者有什么区别？

例如：

from typing import Text
def spring(a: Text) -> Text:
    return a.upper()

或

def spring(a: str) -> str:
    return a.upper()

Answer 1

来自文档（如 Ians 评论中所述）：

Text is an alias for str. It is provided to supply a forward compatible path for Python 2 code: in Python 2, Text is an alias for unicode.

Use Text to indicate that a value must contain a unicode string in a manner that is compatible with both Python 2 and Python 3:
def add_unicode_checkmark(text: Text) -> Text:
   return text + u' \u2713' 

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

文本 vs str，使用 python 类型提示时

Text vs str, when using python type hints

python

string

annotations

python-3.x

python-typing