Remove executable permission for media files recursively

remexe.py

#!/usr/bin/env python3

import os
import stat

extns = ['.aac', '.avi', '.flac', '.m3u', '.m4a', '.mkv', '.mp3', '.mp4', '.smi', '.srt', '.sub', '.webm', '.wma']

for root, dirs, files in os.walk('.'):
    for entry in files:
        fname, ext = os.path.splitext(entry)
        ext = ext.lower()
        if ext in extns:
            abspath = os.path.join(root, entry)
            if os.access(abspath, os.X_OK):
                fperms = stat.S_IMODE(os.lstat(abspath).st_mode)
                os.chmod(abspath, fperms & ~stat.S_IXUSR & ~stat.S_IXGRP & ~stat.S_IXOTH)
                print(abspath)