New submission from Gregory P. Smith <g...@krypto.org>:
subprocess's preexec_fn feature needs to enter PendingDeprecationWarning state in 3.9, to become a DeprecationWarning in 3.10, with a goal of removing it in 3.11. Rationale: We now live in a world full of threads, it is entirely unsafe to call back into the python interpreter within the forked child before exec per POSIX specification. We've also already made preexec_fn no longer supported from CPython subinterpreters in 3.8. If there are not already issues open for desired features of subprocess that do not yet have replacements or workarounds for *specific* actions that preexec_fn is being used for in your application, please open feature requests for those. (ex: calling umask is https://bugs.python.org/issue38417, and group, uid, gid setting has already landed in 3.9) ---------- assignee: gregory.p.smith messages: 354397 nosy: gregory.p.smith priority: normal severity: normal stage: needs patch status: open title: Start the deprecation cycle for subprocess preexec_fn type: enhancement versions: Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38435> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
