[Python-Dev] Process to remove a Python feature

[Victor Stinner]

2018-05-04 23:59 GMT+02:00 Terry Reedy <tjreedy at udel.edu>:
> Would it be possible (and sensible) to use the 2to3 machinery to produce
> 36to37.py, etc., to do mechanical replacements when possible and flag other
> things when necessary?

I suggest you to watch Daniele Esposti's talk "Evolution or stagnation
programming languages". He explains that Javascript is more successful
than Python to introduce *language* evolutions thanks to transpiling
(things like babel and polyfill):
https://www.pycon.it/conference/talks/evolution-or-stagnation-programming-languages

Victor