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Wed Jun 15 16:58:17 EDT 2016 · https://mail.python.org/pipermail/python-dev/2016-June/145234.html

On Wed, Jun 15, 2016 at 11:00 PM, Ethan Furman <ethan at stoneleaf.us> wrote:
> On 06/15/2016 12:24 PM, Koos Zevenhoven wrote:
>>
>> And the other question could be turned into whether to make str and
>> bytes also PathLike in __subclasshook__.
>
> No, for two reasons.
>
> - most str's and bytes' are not paths;

True. Well, at least most str and bytes objects are not *meant* to be
used as paths, even if they could be.

> - PathLike indicates a rich-path object, which str's and bytes' are not.

This does not count as a reason.

If this were called pathlib.PathABC, I would definitely agree [1]. But
since this is called os.PathLike, I'm not quite as sure. Anyway,
including str and bytes is more of a type hinting issue. And since
type hints will in also act as documentation, the naming of types is
becoming more important.

-- Koos

[1] No, I'm not proposing moving this to pathlib

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