Python 3.10版本中新增了哪些新功能？

In this article, we will learn the new features in Python 3.10, compared to 3.9. Let’s see the features −

Parenthesized context managers

现在支持使用括号来跨多行继续使用上下文管理器。这样可以以与之前的导入语句相似的方式，将长的上下文管理器集合格式化为多行。

User-Defined Type Guards

TypeGuard has been added to the typing module to annotate type guard functions and improve information provided to static type checkers during type narrowing.

Enhanced error messages

如果您在运行Python程序时遇到错误，错误消息现在将更准确，并提供确切的错误信息

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SyntaxError

SyntaxError

在解析包含未闭合括号或方括号的代码时，解释器现在会包括未闭合括号或方括号的位置，而不是显示SyntaxError: unexpected EOF while parsing或指向错误的位置

SyntaxError exceptions raised by the interpreter will now highlight the full error range of the expression that constitutes the syntax error itself, instead of just where the problem is detected.

IndentationErrors

缩进错误

许多IndentationError异常现在提供了