cleanup filenames of .wav files for subsonic

subsonic_cleanup.py

"""
subsonic_cleanup

example input: "the body - No One Deserves Happiness - 01 Wanderings.wav"
example output: "01 Wanderings.wav"

usage: python3 subsonic_cleanup.py --path "the body - No One Deserves Happiness/" --ext "wav"

TODO:
    * check to see if album or artist has digit, need alternate procedure for such a case
    * remove artist name from directory

"""

import argparse
from pathlib import Path, PurePath
import re

# parse command line arguments
parser = argparse.ArgumentParser()
parser.add_argument("--path", type=str, help="the path")
parser.add_argument("--ext", type=str, default="wav", help="file extension")
args = parser.parse_args()

ext = "".join([".", args.ext])
entries = Path(args.path)

for entry in entries.iterdir():
    if entry.suffix == ext:
        new_name = re.sub(r'^[^\d]+', '', entry.name)
        entries = PurePath(entries)
        full_path = entries / new_name
        entry.rename(full_path)