[Python-Dev] summary: a Path protocol

[Chris Angelico]

On Fri, Apr 8, 2016 at 4:35 PM, Victor Stinner <victor.stinner at gmail.com> wrote:
> Sorry, I don't have time to read the whole discussion. What is the problem
> with adding a __str__ to pathlib?
>
> Victor

Everything else has __str__ too, so you run the risk of open(["Hello",
"World"], "w") working and doing something weird. Or of passing an
open file object to something that was expecting a file name, and
having *that* work too. Calling str(p) on something that ought to be
either a Path or a string should raise an exception if given something
else.

ChrisA