[issue13601] sys.stderr should be line-buffered when stderr is not a TTY

[Shantanu]

Change by Shantanu <hauntsaninja at gmail.com>:


----------
pull_requests: +19467
pull_request: https://github.com/python/cpython/pull/20168

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue13601>
_______________________________________