Inada Naoki songofacandy@gmail.com added the comment:
Manuel Jacob me@manueljacob.de added the comment:
If the encoding supports it, since which Python version do Py_DecodeLocale() and os.fsencode() roundtrip?
Maybe, since Python 3.2. FWIW, fsencode is added by Victor in https://bugs.python.org/issue8514
The background of my question is that Mercurial goes some extra rounds to determine the correct encoding to emulate what Py_EncodeLocale() would do: https://www.mercurial-scm.org/repo/hg/file/5.4.1/mercurial/pycompat.py#l157 . If os.fsencode() could be used, it would simplify the code. Mercurial supports Python 3.5+.
I think it is a right approach. One of the important use case of os.fsencode is using file path from sys.argv even if it can not be decoded by filesystem encoding.
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_______________________________________ Python tracker report@bugs.python.org https://bugs.python.org/issue17110 _______________________________________