Transliterate files and directories names

transliterate_names.py

#!/usr/bin/env python3

import argparse
from os import listdir, rename
from os.path import isfile, join
from re import sub


parser = argparse.ArgumentParser(prog='Transliterator', description='Transliterates file/dir names')
parser.add_argument('-f', '--force', action='store_true')
force = parser.parse_args().force


SYMBOLS = (u"абвгдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ ",
           u"abvgdeejzijklmnoprstufhzcss_y_euaABVGDEEJZIJKLMNOPRSTUFHZCSS_Y_EUA_")

tr = {ord(a):ord(b) for a, b in zip(*SYMBOLS)}


for fo in listdir('.'):
    fn = fo.translate(tr)
    fn = sub('[^a-zA-Z0-9_.]', '', fn)

    if force:
        rename(fo, fn)
    else:
        print(fo, '=>', fn)