[Python-Dev] PEP 540: Add a new UTF-8 mode (v3) (original) (raw)

Toshio Kuratomi a.badger at gmail.com
Sun Dec 10 13:23:33 EST 2017

On Dec 9, 2017 8:53 PM, "INADA Naoki" <songofacandy at gmail.com> wrote:

Earlier versions of PEP 538 thus included "enUS.UTF-8" on the candidate target locale list, but that turned out to cause assorted problems due to the "C -> enUS" part of the coercion.

Hm, but PEP 538 says:

this PEP instead proposes to extend the "surrogateescape" default for stdin and stderr error handling to also apply to the three potential coercion target locales.

https://www.python.org/dev/peps/pep-0538/#defaulting-to- surrogateescape-error-handling-on-the-standard-io-streams

I don't think en_US.UTF-8 should use surrogateescape error handler.

Could you explain why not? utf-8 seems like the common thread for using surrogateescape so I'm not sure what would make en_US.UTF-8 different than C.UTF-8.

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