Re: [Python-Dev] RFC: PEP 460: Add bytes % args and bytes.format(args) to Python 3.5

Daniel Holth writes:

-1 on adding more surrogateesapes by default. It's a pain to track down where the encoding errors came from.

What do you mean "by default"? It was quite explicit in the code I posted, and it's the only reasonable thing to do with "text data without known (but ASCII compatible) encoding or multiple different encodings in a single data chunk". If you leave it as bytes, it will barf as soon as you try to mix it with text even if it is pure ASCII!