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Author vstinner
Recipients lemburg, vstinner
Date 2021-03-19.10:31:12
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1616149872.12.0.48852102913.issue43552@roundup.psfhosted.org>
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> Now, the correct way in all this would be to just call setlocale(LC_ALL, '') at the start of the application

Python now does that during its initialization on all platforms. So getpreferredencoding(False) is what its documentation says: the user preferred encoding, the LC_CTYPE locale encoding.

On Python 3.7, _Py_SetLocaleFromEnv(LC_CTYPE) was called in _Py_InitializeCore() on Unix, but not on Windows.

Since Python 3.8, _PyPreConfig_Write() calls _Py_SetLocaleFromEnv(LC_CTYPE) on all platforms including Windows. See bpo-34485 and my article for more details ("C locale on Windows" section):
https://vstinner.github.io/python3-locales-encodings.html

_Py_SetLocaleFromEnv(LC_CTYPE) calls setlocale(LC_CTYPE, ""), but has more complex code on Android.
History
Date User Action Args
2021-03-19 10:31:12vstinnersetrecipients: + vstinner, lemburg
2021-03-19 10:31:12vstinnersetmessageid: <1616149872.12.0.48852102913.issue43552@roundup.psfhosted.org>
2021-03-19 10:31:12vstinnerlinkissue43552 messages
2021-03-19 10:31:12vstinnercreate