STINNER Victor <vstin...@python.org> added the comment:
subprocess.Popen encodes the env parameter using os.fsencode(). os.fsencode()
has been patched in bpo-27182 to use os.fspath():
commit c1cbeedf0c650c3f7c64f04479070d39e15e1baf
Author: Ethan Furman <et...@stoneleaf.us>
Date: Sat Jun 4 10:19:27 2016 -0700
issue27182: update fsencode and fsdecode for os.path(); patch by Dusty
Phillips
For os.environ, you can use:
os.environ["foo"] = str(Path("bar"))
I don't know if os.environ is supposed to use the fspath protocol. I add Ethan
and Brett to the nosy list.
fspath is specified by the PEP 519 "Adding a file system path protocol":
https://www.python.org/dev/peps/pep-0519/
----------
nosy: +brett.cannon, ethan.furman, vstinner
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