Excuse me, but my original "holistic" proposal was rejected and it was suggested to me to propose only relevant changes, and one for issue. Now you say exactly the contrary. I feel a bit confused.

PS: yes, I can, and I use, IPython. But IMHO IPython does too much things and its design is not very pythonic. Bracketed paste mode is a good feature, and I think REPL will be much more useful if it implements it.

On the contrary, if you don't think IPython is good, pythonic and essential, I suppose there's no problem to substitute REPL with IPython in CPython core itself.