Renomeia diretórios no formato data

myFolderRenamer.py

import os
basedir = "/root/Scripts/myren/sandbox"
for old_name in os.listdir(basedir):
    res = " ".join(reversed(old_name.rsplit('-')))
    print("Reverse folder.: " + str(old_name))
    new_name = str(res).replace(" ","-")
    print("Reversing to...: " + str(new_name))
    os.rename(os.path.join(basedir,old_name),os.path.join(basedir,new_name))
    print("done!")
   

Diretório com as pastas assim:

tree sandbox/
sandbox/
├── 15-05-2020
└── 15-10-2011

Saída:

Reverse folder.: 15-10-2011
Reversing to...: 2011-10-15
done!
Reverse folder.: 15-05-2020
Reversing to...: 2020-05-15
done!