explorer.py

import os
import pathlib

# Usage :
# for filename in walker(ROOT_PATH):
#   code...

def walker(path):
    for (_, dirs, files) in os.walk(path):
        for name in files:
            yield pathlib.PurePath(path).joinpath(name)
        for name in dirs:
            walker(pathlib.PurePath(path).joinpath(name))