异常处理的核心目的是让程序在遇到错误时能够优雅地恢复或退出，而不是直接崩溃。

In Python, a SyntaxError happens when the interpreter finds code that does not conform to the rules of the Python language.

A faster interpreter, more intelligible errors, more powerful type hints, and a slew of other speedups and tweaks are now ready to try out. The Python programming language releases new versions yearly ...