[Python-Dev] Pathlib enhancements - acceptable inputs and outputs for __fspath__ and os.fspath()

INADA Naoki songofacandy at gmail.com
Mon Apr 11 20:51:21 EDT 2016

Sorry, I've forgot to use "Reply All".

On Tue, Apr 12, 2016 at 9:49 AM, INADA Naoki <songofacandy at gmail.com> wrote:

> IHMO it's safer to get an encoding error rather than no error when you
>> concatenate two byte strings encoded to two different encodings (mojibake).
>> print(os.fspath(obj)) will more likely do what you expect if os.fspath()
>> always return str. I mean that it will encode your filename to the encoding
>> of the terminal which can be different than the filesystem encoding.
>> If fspath() can return bytes, you should write
>> print(os.fsdecode(os.fspath(obj))).
> Why not print(obj)?
> str() is normal high-level API, and __fspath__ and os.fspath() should be
> low level API.
> Normal users shouldn't use __fspath__ and os.fspath().  Only library
> developers should use it.
> --
> INADA Naoki  <songofacandy at gmail.com>

INADA Naoki  <songofacandy at gmail.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-dev/attachments/20160412/871917bd/attachment.html>

More information about the Python-Dev mailing list