Re-encode broken filenames from Google Drive Takeout folder

gdrive-reencode.py

#!/usr/bin/env python3

import os
from typing import List, Callable


def transform(name: str) -> str:
    return bytes(name, "latin1").decode("utf-8")


def rename_all(root: str, orig_names: List[str], transform: Callable[[str], str], test=False) -> int                                                                                                                                         :
    name_pairs = ((n, transform(n)) for n in orig_names)
    filtered_names = [e for e in name_pairs if e[0] != e[1]]
    for orig, dst in filtered_names:
        orig_path = os.path.join(root, orig)
        dst_path = os.path.join(root, dst)

        print("{}:  {}  ->  {}".format(root, orig, dst))
        if not test:
            os.rename(orig_path, dst_path)

    return len(filtered_names)


def main(path: str, is_test: bool = False) -> int:
    old_path = os.getcwd()
    os.chdir(path)

    dirs_renamed = 0
    dirs_total = 0
    files_renamed = 0
    files_total = 0

    for root, dirnames, filenames in os.walk(".", topdown=False):
        print("--> {}".format(root))
        dirs_total += len(dirnames)
        files_total += len(filenames)
        dirs_renamed += rename_all(root, dirnames, transform, is_test)
        files_renamed += rename_all(root, filenames, transform, is_test)
        print()

    print("Dirs renamed:  {}/{}".format(dirs_renamed, dirs_total))
    print("Files renamed: {}/{}".format(files_renamed, files_total))
    print("ALL DONE")

    return 0


if __name__ == "__main__":
    from sys import argv
    path = argv[1] if len(argv) >= 2 else "."
    raise SystemExit(main(path))