Why is subprocess.list2cmdline not documented

[CAM-Gerlach]

To note, this also came up in

How to deal with unsafe/broken os.spawn* arg handling behavior on Windows

TL;DR The legacy os.spawn* functions don’t handle spaces or quotes in arguments on Windows, as they are just naively concatenated without quoting/escaping This is unsafe, leads to many subtle bugs (in CPython’s own test suite, even) and inconsistent with the POSIX behavior Presently, they are little-used, considered a security risk and most uses have some form of these bugs At minimum, fix the tests and warn about this in the docs, as well as at least one of the following: Deprecate these lit…

and the related

test_os fails on Windows if current directory contains spaces