gh-98552: Revert (unneeded, already done elsewhere) "flush std streams in the multiprocessing forkserver before fork (#141849)" (#141871)

Revert (unneeded, already done elsewhere) "gh-98552: flush std streams in the multiprocessing forkserver before fork (#141849)" This reverts commit 58badb1711.
2025-12-23 09:19:18 +00:00 · 2025-11-23 01:52:26 -08:00 · 2025-11-23 01:52:26 -08:00 · 614a28b3da
commit 614a28b3da
parent 2746c698e3
2 changed files with 0 additions and 5 deletions
--- a/Lib/multiprocessing/forkserver.py
+++ b/Lib/multiprocessing/forkserver.py
@ -326,7 +326,6 @@ def main(listener_fd, alive_r, preload, main_path=None, sys_path=None,
                                    len(fds)))
                        child_r, child_w, *fds = fds
                        s.close()
-                        util._flush_std_streams()
                        pid = os.fork()
                        if pid == 0:
                            # Child
--- a/Misc/NEWS.d/next/Library/2025-11-22-18-00-38.gh-issue-98552.d5KNy-.rst
+++ b/Misc/NEWS.d/next/Library/2025-11-22-18-00-38.gh-issue-98552.d5KNy-.rst
@ -1,4 +0,0 @@
-The :mod:`multiprocessing` forkserver process now flushes stdout and stderr
-before it forks to avoid the confusion children inheriting any buffered but
-not yet written output data.  Normally there is none, but when using
-:func:`multiprocessing.set_forkserver_preload` there *could* be.