vstinner changed the title bpo-36829: sys.unraisablehook() explicits flush stderr bpo-36829: sys.excepthook and sys.unraisablehook flush

DinoV pushed a commit to DinoV/cpython that referenced this pull request

sys.excepthook() and sys.unraisablehook() now explicitly flush the
file (usually sys.stderr).

If file.flush() fails, sys.excepthook() silently ignores the error,
whereas sys.unraisablehook() logs the new exception.