Python's C API basically exposes the interpreter internal objects (these are very well-designed internal objects!). Anyone wants to support C-extension modules

Python's C API basically exposes the interpreter internal objects (these are very well-designed internal objects!). Anyone wants to support C-extension modules for CPython need to either keep their internal representation compatible with CPython's interpreter presentation (which severely constrains what you can do in your new interpreter), or have some kind of translation layer between. See: https://docs.python.org/3.10/c-api/index.html https://docs.python.org/3.10/c-api/index.html and https://www.pypy.org/posts/2018/09/inside-cpyext-why-emulating-cpython-c-8083064623681286567.html https://www.pypy.org/posts/2018/09/inside-cpyext-why-emulati...