gh-74940: Allow fallback to UTF-8 encoding on systems with no locales installed. by gordonmessmer · Pull Request #14925 · python/cpython (original) (raw)

mjurbanski-reef pushed a commit to Backblaze/b2-sdk-python that referenced this pull request

On Linux, C.UTF-8 locale is now part of the standard. macOS and Windows use en_US.UTF-8 instead.
Up to 3.11, locale.normalize was converting C.UTF-8 into en_US.UTF-8. If you normalized the locale string, it was impossible to set C.UTF-8.
In 3.12, C.UTF-8 maps to itself.
python/cpython#14925
https://peps.python.org/pep-0538/
C.UTF-8 doesn't seem to be used anywhere else in the codebase, except for this one test.
Other fix would be to inject a previous value to locale.locale_alias dictionary for certain platforms. However, this is part of the private implementation and could change without prior notice.
More changes to the locale are scheduled for 3.15.