[issue33695] Have shutil.copytree(), copy() and copystat() use cached scandir() stat()s

[Giampaolo Rodola']

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


----------
pull_requests: +12025

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33695>
_______________________________________