Guido van Rossum, Pablo Galindo, and Lysandros Nikolaou wrote a new Python parser to excise these warts, and proposed PEP 617 to adopt it in CPython. The new parser is written in a more powerful style called a parsing expression grammar (PEG), so the project is named “PEGEN”.
pypy team.
https://morepypy.blogspot.com/2020/
https://github.com/vstinner/talks
https://github.com/pyhandle/hpy
来源：oschina
链接：https://my.oschina.net/innovation/blog/4318860