[Python-Dev] Pathlib enhancments - method name only

Brett Cannon brett at python.org
Fri Apr 8 21:41:19 EDT 2016

On Fri, Apr 8, 2016, 16:13 Glenn Linderman <v+python at g.nevcal.com> wrote:

> On 4/8/2016 3:28 PM, Eric Snow wrote:
> All this matters because it impacts the value returned from
> __ospath__().  Should it return the string representation of the path
> for the current OS or some standardized representation?  I'd expect
> the former.  However, if that is the expectation then something like
> pathlib.PureWindowsPath will give you the wrong thing if your current
> OS is linux.  pathlib.PureWindowsPath.__ospath__() would have to fail
> or first internally convert to pathlib.PurePosixPath?
> Now that Windows 10++ will run Ubuntu apps, will Python be able to tell
> the difference for when it should return Windows-format paths and
> Posix-format paths?

All the bits of code in Python accept / as a separator on Windows so it
doesn't matter (but Ubuntu on Windows is Linux, so it will be / just like
any other Linux install).

> (I'm sure the answer is yes, the Python-for-Ubuntu running on Windows
> would do the latter, and the Python-for-Windows would do the former.
> Although, it is not clear what sys.platform will return, yet...)

It should return Linux.


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