[issue33414] Make shutil.copytree use os.scandir to take advantage of cached is_(dir|file|symlink)

[Giampaolo Rodola']

Change by Giampaolo Rodola' <g.rodola at gmail.com>:


----------
nosy: +giampaolo.rodola

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33414>
_______________________________________