diff options
Diffstat (limited to 'Lib/multiprocessing')
-rw-r--r-- | Lib/multiprocessing/forkserver.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/multiprocessing/forkserver.py b/Lib/multiprocessing/forkserver.py index 681af2610e9..c91891ff162 100644 --- a/Lib/multiprocessing/forkserver.py +++ b/Lib/multiprocessing/forkserver.py @@ -222,6 +222,10 @@ def main(listener_fd, alive_r, preload, main_path=None, sys_path=None, except ImportError: pass + # gh-135335: flush stdout/stderr in case any of the preloaded modules + # wrote to them, otherwise children might inherit buffered data + util._flush_std_streams() + util._close_stdin() sig_r, sig_w = os.pipe() |