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Wed Jul 2 23:59:01 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-July/135316.html

Ben Hoyt <benhoyt at gmail.com> writes:
> Thanks for the clarifications and support.
>
>> Ah, the wording in the PEP says "Linux, Windows, OS X". Superficially,
>> that said "everywhere" to me. It might be worth calling out
>> specifically some examples where it's not available without an extra
>> system call, just to make the point explicit.
>
> Good call. I'll update the wording in the PEP here and try to call out
> specific examples of where is_dir() could call os.stat().
>
> Hard-core POSIX people, do you know when readdir() d_type will be
> DT_UNKNOWN on (for example) Linux or OS X? I suspect this can happen
> on certain network filesystems, but I'm not sure.

Any fuse file system mounted by some other user and without -o
allow_other. For these entries, stat() will fail as well.

Best,
-Nikolaus

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Showing content from https://mail.python.org/pipermail/python-dev/2014-July/135316.html below:

[Python-Dev] My summary of the scandir (PEP 471)