On Fri, Apr 8, 2016 at 2:50 AM, Nick Coghlan <ncogh...@gmail.com> wrote:
> On 7 April 2016 at 03:26, Brett Cannon <br...@python.org> wrote: > > > Method or attribute? (changes what kind of one-liner you might use in > > libraries, but I think historically all protocols have been methods and > the > > serialized string representation might be costly to build) > couldn't it be a property? > Method, as long as there's a helper function somewhere what has the helper function got to do with whether it's a method or attribute (would we call a property an attribute here?) > Built-in? (name is dependent on #1 if we add one) > > os.fspath (alongside os.fsencode and os.fsdecode) > > (Putting this in a module low in the dependency stack makes it easy > for other modules to access without pulling in all of pathlib's > dependencies) Iike that -- though still =0.5 on having one at all -- this is only going to be used by the stdlib and other path-using libraries, not user code -- is that that hard to call obj.__fspath__() ? > Add the method/attribute to str? (I assume so, much like __index__() is on > > int, but I have not seen it explicitly stated so I would rather clarify > it) > I thought the whole point off all this is that not any old string can be a path! (whereas any int can be an index). Unless we go with Chris A's suggestion that this be a more generic lossless string protocol, rather than just for paths. > It's worth summarising in a PEP at least for communications purposes - > very easy for folks that don't follow python-dev to miss otherwise. > I'd say add it to the existing pathlib PEP -- along with the extra discussion of why Path does not inherit from str. -CHB -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception chris.bar...@noaa.gov
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