[Python-Dev] proposed os.fspath() change

Ethan Furman ethan at stoneleaf.us
Wed Jun 15 16:00:01 EDT 2016

On 06/15/2016 12:24 PM, Koos Zevenhoven wrote:
> On Wed, Jun 15, 2016 at 10:15 PM, Brett Cannon wrote:

>> ABCs like os.PathLike can override __subclasshook__ so that registration
>> isn't required (see
>> https://hg.python.org/cpython/file/default/Lib/os.py#l1136). So registration
>> is definitely good to do to be explicit that you're trying to meet an ABC,
>> but it isn't strictly required.

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


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