[issue36443] Disable coerce_c_locale and utf8_mode by default in _PyPreConfig?

[STINNER Victor]

New submission from STINNER Victor <vstinner at redhat.com>:

bpo-36301 created a very strict separated between Python initialization and a new "pre-initialization" which is responsible to configure encodings and memory allocators.

Nick Coghlan proposed to disable UTF-8 Mode and C locale coercion by default in the pre-initialization, so the LC_CTYPE locale is not coerced by Python when it's embedded in an application.

Maybe the UTF-8 Mode can be automatically enabled (depending on the LC_CTYPE locale), but not the C locale coercion?

This issue is related to bpo-36202: Calling Py_DecodeLocale() before _PyPreConfig_Write() can produce mojibake.

----------
components: Interpreter Core
messages: 338922
nosy: ncoghlan, vstinner
priority: normal
severity: normal
status: open
title: Disable coerce_c_locale and utf8_mode by default in _PyPreConfig?
versions: Python 3.8

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36443>
_______________________________________