These are not my arguments, mind you; I don't know enough to make them.
You've piqued my interest, though: can you give me an example of those things that you can't change or that break CPython?
You've piqued my interest, though: can you give me an example of those things that you can't change or that break CPython?
>>> import gc
>>> 'foo'.lower()
>>> gc.get_referents(str.__dict__)[0]['lower'] = str.upper
>>> 'foo'.lower()
segmentation fault (core dumped) python
A talk in this direction is https://www.youtube.com/watch?v=qCGofLIzX6g