The REPL experience in Lisp stems from how Lisp works; notebooks on top of Python don't remove Python's fundamental limitations. You can put a better interface

The REPL experience in Lisp stems from how Lisp works; notebooks on top of Python don't remove Python's fundamental limitations. You can put a better interface on top of Python and it will still have Python's limitations, such as the necessity to create new instances if you redefine a class as opposed to old instances adapting to redefined structure and behavior.