I think the downvotes are because you did not answer the question you replied to, and instead gave a pretty unrelated rant.
replyI'm explaining that yes, code does break every new python version? Mostly because they touch the stdlib instead of just leaving it be.
replyThe thread is about the code in the std lib being a huge amount of work because the code in the std lib needs to be kept working with new language releases.
replyAnd then you answered about downstream code breakage totally outside the std lib.