Quick webp converter for web

webpconv.py

import argparse
from PIL import Image
import os


def dir_path(string):
    if os.path.isdir(string):
        return string
    else:
        raise NotADirectoryError(string)


def convert_to_webp(source, dest):
    image = Image.open(source)
    image.save(dest, format="webp")

parser = argparse.ArgumentParser(
    prog='WebP Converter',
    description='Convert any image to webp',
    epilog='Made for web and tjc ;)'
)
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--file', type=argparse.FileType('r'), nargs='+')
group.add_argument('--path', type=dir_path)

args = parser.parse_args()

files = {*map(lambda a: a.name, args.file)} if args.file is not None else os.listdir(args.path)

print(f"Converting {len(files)} files:")

for file in files:
    dest = ".".join(file.split(".")[:-1]) + ".webp"

    print(f" [ ] '{file}' => '{dest}'", end="")

    convert_to_webp(file, dest)

    print(f"\r [x] '{file}' => '{dest}'")


print(f"\nFinished converting {len(files)} files!")